I did, in fact after all the equipment is put in would cost less than a decent 60 ft RV, and this one would be faarrr more gasoline effective. Still only 13 MPG, but your average RV of that size (which would still fit less people) only gets about 9 unless you want to buy an upper scale one, which even used costs over 20K.
So... This would be more work, but cheaper in the long run. Would also be more awesome having a custom job.
Still need to get more funding together either way, but this bad boy aint going anywhere for a loonnngggg time.