I recommend a Dakota chassis as well
the S10 is useable but it is a little narrow, you might need to use reversed wheels, and the steering box may limit how big of a radiator you can use.
dakota's are almost to wide but with the right wheels they work out great..
see the 2 below.
My Squattie truck, I used a mid 80's dodge D50/Mitsubishi truck chassis, it worked great....




this is on a dakota chassis




this is my son's truck on a dakota chassis




this was my Squattie truck on a dodge D 50 chassis