That website says "Business Closed". If you're pretty good with a pencil and a welder, adapting the body and bed to an S-10 frame isn't terribly difficult, and the running gear will be 50+ years newer with parts much more available. IIRC, the S-10 frame length can be adjusted by cutting away a few welds and sliding the front and rear sections in and out to achieve the desired wheelbase. Have fun!
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!