Have you figured out how to put a bed floor in ? I think you might have problems with wheel spacers that wide . My brother has done this same swap on his 48 and swears he would never do it again . He did another 55 1st series chevy with a crossmember kit and camaro rear end in about 1 month using a 3/4 ton frame . The s-10 was a real night mare. He had to make ever part to fit, including a hand made bed . I am going to use the stock 3/4 ton frame after seeing the heart ache he has indured . The offset wheels really had a bad scrub raduis and already used up one set of wheel bearings . Hope yours goes better .