Square Body 350TBI/TH400(2wd) to 6.5/NV4500 (4wd). Advice/Help needed.

[NastyBuzzard]

I have a 1988 GMC R3500 Crew Cab Long Bed (2wd.) I purchased a 78 1 ton 4x4 Crew Cab for the Dana 60 and 4x4 parts. I will be converting my 88 to 4x4 shortbed with the Dana 60 front.

I found an excellent deal on a 94 running 6.5 Turbo Diesel/NV4500 Combo. The guy bought it because it had a brand new injection pump so he did rob that which I will need to find a replacement for. I plan to go look at it on Friday. He said if I buy the combo he will let me get anything I need off the truck since I told him my plans.

So I will need to be converting from 350TBI/Th400 to the diesel combo. Can I pull the entire engine wiring for the TBI, tanks and fuel lines and sell it, or is that a bad idea?

I am not sure what I will need to go about wiring just yet but I am no stranger. I have done a LS swap.

I just can't find an abundance of info like the LS swap because every one has done that.

So some info I need is:
Wiring? Do I need to get anything from 6.2?
Transfer case? Only spare I have is a 78 205 from behind a th350.
Cross member?
Fuel tank/Lines? k5 rear tank or just 2-16gal saddle tanks?
Intercooler
Turbo routing/interference with AC box and what not.
General info.

I am not trying to build anything super fast, I just want the reliability and economy of the diesel plus the pulling power. This truck will just be putting around in the country or pulling something.

I believe the 6.2 and 6.5 are very similar and I know 6.2's came in square so I assumed this shouldn't be too difficult.

So, anyone done something like this? Any threads you can link to or anything would be great!