Looking at another one!!

[softballnrd27]

I am looking at purchasing a CUCV, mainly for the axles to go under my 82 4x4 swb that I want to build into a very capable offroad machine. I got to thinking about the CUCV and what I would do with it after I took the axles and here are a couple of scenarios:
All have to do with making a tow rig/DD and I have another 14 bolt and I would convert the current 10 bolt under the 82 to 8 lug.
1:Rebuild 6.2 w/minor mods to make it worthy
2:Swap in a later model diesel
3:Swap in a 6.0 liter gas
There are advantages and disadvantages to each one. Diesel is expensive right now, gas is a little cheaper. Gas mileage between the different fuels would need to be researched. Better pulling with diesel and no emissions if I get orders back to Cali, unless that has recently changed.
I would like to get everyone elses opinion or other options.