I didn't know how to handle the pickup cab after I got the back "clip" cut off of it so this is what I came up with. I didn't even bolt the casters on, just used piano wire. Should be plenty good to wheel around the shop until I need to set it down on the frame. The second photo is the frame mocked up for welding. I overlapped top and bottom 10 inches so I have a lot to weld to. I used two frames so I ended up only taking 3-4 inches out of the wheel base. I will have to set it up on its edge to weld it so I can weld on the horizontal. I am not sure how I am going to hold everything yet. I am bolting the top and bottom together so that should hold it pretty good until I get it welded.