I don't know about the other models but the 600 has the Bosch Fuel InJ and EFI computer so its the same as a regular car.  So no oil pressure faults, no starts,  and the like will keep it from doing something stupid. 
You could probably even stuff a 30 dollar Torque Pro adapter in the OBD plug and put a 12 inch IPAD or ANDROID tablet on your dash!  Maybe a HUD?   

And BTW, if i can,  I will 3d scan the area and 3d print some clamping brackets-got a printer? Or a friend with one?   Could post it on thingiverse....I'm just short on time... 

I'm only doing the backup cam as I have a new in box gathering dust.  It has sensors so no wiring to reverse.  Apparantly it senses the movement to turn on.  I still have a new long range 2 way autostart I want to wire in.  Have all the stuff and the schematics just have to get to it.

I thought about a sand spreader for the back but maintaining the material (keeping it dry) looks to be a PITA....But I do plan on hanging a hydraulic Back blade off the hitch which would add a bit of weight.

I'm sorry, that's a pic of the OEM doors.  I finally got mine on You could clamp it with anything (plexiglass).  Plus talk to the ladies at your local fabric store...Nylon netting chemically welds surprisingly well with the right adhesive.  Even just using a lighter works well.

I'm adding a lot of weight to the front of my 600.  Anybody know where to get Blocks or Bags?

I have a leftover (new) wired back up camera I'm going to install above the hitch, will see how that works for visibility.  When I first got the UTV I was a little surprised about the lack of included rear vision items...which was none.

Yeah mine came with the cheapest side mirrors ever. Useless. When I broke one...I can't believe I actually bought a new one to replace it. The center rear-view was a good investment.

From Cedar Crest ah. Beautiful up there. Glad to have you with us.

So with the new doors on and plowing 6 to 12 inches of heavy wet snow at 8 to 10mph I can attest that the 600 has enough heat to power the Inferno heater with Bypass Valve, the defrost kept the cab clear....Course I was in low gear...Engine was working-4600 rpm or so constantly.  Not cold outside (30) but with the heated seats I had to turn it down and shut off the heated seats-and open a window...
Back to the mirrors...I still cant see how the sides tube mounts will work with the doors unless they stick waaaay.  Mounted on the door, vision from the drivers position they wouldn't have to be so far out.
Which center rear view mirror do you recommend?  I'm sure there are lotsa options available.

Use a black mesh laundry bag, flat clamp it like cfmoto does.

Oh, so noise insulation.....If spare time permits Ill make an engine cover-which is the only way to reduce the obnoxious noise coming out of the engine.  Kinda low on my to do list though.  Just a covering shell will make a big difference-better to bite the bullet and cover the motor to prevent vibe and noise getting into the cab than adding all sorts of deadening stuff in the cab... I think... I have lotsa toys to make it happen (3d scanners etc)...just need to commit.
Probably will get it figured out when I install my electric 1k dump actuator. 
I also have a spare hydroelectric actuator that Im going to mount on the back for a back blade.
maybe I should have just bought a BOBCAT ToolCaT

I gravitated to this brand when I heard KTM got involved, I have had a few since the ol Maico days.....The Austrian Harley-which also means nuts and bolts will fall off occasionally..my understanding is that its a KTM designed and QC'd the Chicom motor, but it has Bosch standard fuel injection-I'm sure built in China as well but QC'd by Bosch.  This might explain why the little 600 vibrates so much-no counterbalencer.  My old KTM 640lc4 didnt have much of a counterbalancer but would produce a lot more HP AND TQ then the competition.  Very reliable but would rattle everything off the bike.

Yes Cedar Crest is nice, only have 2 acres but my backyard is the 11k Sandia Mtn...no UTV riding in the National forest but that's ok.
How did you insulate your roof?  I still have to mount the doors and figure out how warm it will get in the cab for snow removal.  I live at the end of a 1.5 mile private asphalt road hence the investment in snow removal, plus I have to make the machine workable for my wife and mom-in-law.  That way they can plow there way out if need be

I have a leftover (new) wired back up camera I'm going to install above the hitch, will see how that works for visibility.  When I first got the UTV I was a little surprised about the lack of included rear vision items...which was none.

I'm getting my doors tomorrow and I will be looking for mirrors as well.  Not sure how they will work with the suicide doors though-unless they mount to the door.  I might have to make a mount for the tube mount mirrors I have.

I thought there were some bumpers available already?
I will start a separate thread for home made accessories once I get some stuff organized.  So far I have front and rear windshields, doors are getting close,  skid plates, plow mounts, next is cargo bed tie down anchors to replace those obnoxiously expensive cf moto versions.  Most of this stuff you can take to a good steel or plastic supplier with the right tools and pay the 1 hr machine time to cut them out.

All brands seem to get loud when you close up the cab with windows and doors. 
Expect to adjust your shift cable, take some wrenches with you when you ride.  Instructions are in the threads, interestingly there are no instructions in the current service manual..