Which Year of the S10 Chassis

[57ToyBox]

I'm gonna do a FULL Chassis swap on my 57 Chev Panel Van and seeing as I'm gonna go to the expense I might as well go 4x4.

Any suggestions on a year 4x4 S10 chassis?
The wheel base on my Panel is 114.5 inches
Four wheel disc would be preferable

Correct me if I'm wrong, this is what I've learned about the S10.

Regular cab short box - 108.3"
Regular cab long box - 117.9"
Extended cab short box - 122.9"

Compliments of Ad-engineering

1982-1983 No spare tire winch built in / No ext. cabs available / Spare tire x-member must be removed.
1985 Fuel Injection begins on the 2.8L V6 means different fuel lines.
1988 4.3L V6 with EFI introduced means different fuel lines.
1989 Rear ABS introduced
1991 Turbo charged AWD GMC Syclone introduced
1994 ZQ8 Sport Suspension package introduced / New body style introduced
1996 Four wheel ABS available on all S10's
1998 Four wheel disc brakes
1999 S10 Extreme introduced
!! DO NOT USE ANY ZR2 FRAME OR AXLE. BOTH ARE TOO WIDE !!