I was wondering if anyone has found a hard plastic storage box for the rear rack that works good without removing the backrest?

One of the vendors here, STORM products, has some nice ones

I was looking on their website and couldn't find any.  I saw the ones in the post though.

There site was hard to get around for me too. Just pm them and ask.

ok I will try that.

I picked up a black plastic tool box from harbor freight for like $10, just drilled a couple holes in the bottom and zip tied it down, been on there a year