Hello Ron, welcome aboard.
Typically, an S10 Standard Cab, 2WD Long Bed frame is used in an "S10 conversion", as the wheelbase is nearly identical (within 0.2") to that of a half-ton (3100 Series) AD pickup. If the ZR2 option was available in a Standard Cab, Long bed configuration, it may be possible to install AD sheetmetal on it. Drivetrain position may be an issue, and if moved would require (as a minimum) new driveshafts.
Good Luck! Post pictures if you have them.
Mike