LS swap assistance and info please

[Chevmdnss]

Ok Gang, here we go... starting point 1970 C/10 LB 350 2bbl/TH350 A/C cab

I am going into the shop tomorrow to do the static drop, McGaughy's 4.5/5 with disc conversion, ECE adjustable super trac bar, & front sway bar. During this it will also be getting the full MOOG front end rebuild. I feel this will give me the stance and handling I want.

Now to the reason for this post....

I have the opportunity to buy a running/driving 2001 K2500 with LQ4 (U code 6.0) and 4L80 really cheap.

Since many of you have challenged the LS swap and succeeded, can you guys please advise me of the parts you bought and why. I want to use as many of the stock GM pieces from the K2500 as possible. I am not looking to boost the performance of the 6.0 at this time because 300+ hp and almost 400lbft are more than enough for a daily driver that is 46 years old.

I know there will be some things I will have to buy, and some things that have to be fabricated.

Concerns of mine as of right now....

Belt drive - will this setup work in these frame rails
4wd tranny - is it as easy as putting a tailshaft housing on and calling it good?
A/C - should I buy a vintage air kit, or what?

Oil pan - do I need to change it?
Driveshaft length - will it need to be modified or are the engine mounts adjustable enough to accommodate?

I am reading every thread I can find, so I may find some answers as I go...

I understand that this is not a cheap venture at all, but I want to have as much heads up as possible before we start this part of the build.

Thanks in advance for any input!!