I think the best option would be to put a Xcab cab on the 4runner frame and then shorten (bob) the bed to fit. That's a TON of work, money, time & don't even know how the legal aspects would work.... VIN plates, emissions, ETC. I imagine you'd keep the VIN of the Xcab truck b/c that's what people see going down the road??? I'm just gonna keep my 4runner... Hopefully within a few short years I'll be out of school & just buy an actual pickup to have. Either buy a cheap ***** cracker box or actually buy a new 1500 for a DD. Around here for $800 you can get a nice older used 2wd ***** work truck. Sorry about the long posts, just figured I'd tell ya what I think b/c i was in your situation a while back.