Sounds like a lot of fun.
The length of an S-10 frame is easy to shorten, and little harder to lengthen. You don't say which model yours is, so I can't guess the length.
Without measuring I fear the front suspension on the S-10 is a little narrow for this application. The S-10 is about perfect for a '47 - '55 1st, which is narrower than your truck. You'll want to measure carefull to be sure you like the fit.
If those kids work out real well I may need to lease them from you.
