Im using 2x2x.125" for the basic frame, 2x2x.250 for the tongue and using 2x2x.250" angle for a couple cross-members within the frame.
I dont really have much of a plan yet, just kinda winging it. The outside dimensions of the frame are 114"x64". The width was chosen by the axle I happened to find cheap. This build is most DEFINITELY a budget build. I'll spend where I have to or where I think it's important, but anything I can do for free or cheap is great.
Squaring up the frame took a little bit of effort but wasnt too bad. It's within a 1/16th or so. I still have some welding on the inside corners to do, but it's sturdy as it is.
I've picked up a Dometic RM2201 (free) that works pretty good but it has issues with staying lit with gas. Im sure a good cleaning will fix it. Also grabbed a wedgewood 3 burner stove (free) that should work pretty well in the galley. So far the fridge and 120-12v converter(free) have been tested. I have a hydro-flame furnace (free) that I picked up also but havent been able to test it thus far.
Im hoping to have a SAWTOOTH type design, but obviously larger.
Here's a few pictures of the progress so far. I need to buy some spring perches to get the axle ready to mount up and get the cross-members in and she'll be ready for some tongue work.





Anyone have any tips?