12v cummins into 62 c30

[62c30]

So I got a really really good deal on this 1991.5 12 v cummins with a two wheel drive getrag 5 speed. Ive been thinking of doing an LS swap into my c30 but when I ran across this deal I had to buy it. Deal is a have never owned a diesel and don't know a whole lot about them. I was told it was good and has around 180k on it. First question is I would like to run it before I start spending money going in this direction. I have heard they are easy to start outside of a body. What are the steps to make it run? The engine is complete as far as I know other the intercooler and piping.

I already have a complete front suspension from a crew cab 1981 c30 I'm going to swap regardless of diesel or gas. This setup is heavy! Would the big block springs hold the frontend up enough or will a custom set be required? I'll have a ton more questions if and when I start this project which hopefully will be over winter.