Yes, 35" ProComp tires on 17" wheels. It is a little low for the annex. I have started to build an airlift rack with 4 cylinders that will raise it up 17". It works off a CO2 bottle. There are 4 jerry can brackets on it now, all right behind the tongue box, 2 on either side. The propane bottle and bracket are in the middle of them.
I'm in the southwest corner of CO in Norwood. I will try to take a few more pictures when I get out to my storage unit.
If you'd be at all interested in the airlift rack, I could send you some pictures of it too. I'ts pretty much ready except for paint and running the airlines.