Big block or diesel? know any issues...?

[vintage01]

I'm getting ready to start a project and have a couple things in concern. I have two big blocks: 1967 400 from a catalina and a 1969 396 from an impala. Original plan was to put one of these into a swb 2wd truck. However, a friend of mine has captured my interest in swapping for a diesel in a 4wd. I have read for many hours on different threads about the diesel but never gathered all of my answers I needed.

If I did a diesel swap (say maybe the 6.2/6.5) i would want turbo, ps, pb, ac, manual trans, and still not want to completely remod the whole truck to get those components plus the radiator and intercooler. I am by no means a master mechanic. If anyone can shed some light it would be much helpful and appreciated.

Or should I just stick with the bb street toy? lol both would be a blast