Just wondering if anyone has mounted a Rotopax Fuel pack to the front rack and if so how did you attach it.  I have been considering purchasing a single spare but it appears that the "single mounting plate" will not work on the rack.

Those are awesome. But too pricey for me.

I have made subplates out of alum to span gaps in racks to fit up items. Bolt the bracket onto a plate and then have another one you can slip under the rack to tighten it down.