I seen some "homebulits"
I have seen a few motorhomes converted to 4x4's,one was an older winnebago,the "shoebox" style one....another guy I know made his dodge motorhome with the "B" series van nose into a 4x4 using his wrecked dodge powerwagon drivetrain(got rear ended,so he used it for the parts)..I almost bought it from him,it went great down the road,and on the sand dunes on cape cod--he kissed a tree right behind the driver and peeled the aluminum siding back,and he got disgusted and parked it--when I heard it was for sale,I asked a friend of his to tell him I was interested in it,but he said he had junked it!!
I have also seen a few "P" series bread trucks converted to 4x4's,one guy used a pickup chassis from a one ton,he cut the frame halfway under the cab on both trucks and married the two into one..that rig was cool,it had 38.5's and he buffed the aluminum body with compound until the entire truck looked like it was chrome plated!--and the interior was very nice,all velour seats,a bar,and a huge flat screen TV-
-it was for sale for 15 grand at a swap meet when I saw it--454 motor,205 T-case,dually rear end--I think it was one of the best looking rigs I've seen,it had a rounded nose with horizontal grille bars,split windsheilds,I think it was a Chevy "Curbmaster" or something like that the nose was similar to a 50's chevy pickup,only flat..I'd love to have something like that--having seen many RV's buried in mud at swap meets,I think a 4x4 one would be nice..
