I just got done with a swap into a 1998 RCSB. The donor vehicle was a 2005 suburban with a 5.3 dbw. I was able to keep my a/c system although I did not run it through the computer. I know there are kits for your year as well. I believe dirty dingo also has the brackets for your year truck. As far as fuel pump you will have to upgrade. I know the pumps in the Vortec trucks from 96-98 work with the ls swap. You will have to upgrade all your fuel lines. I did 6 AN Stainless ptfe hose with all AN hose fittings going to a corvette filter. I was able to use the dual fans from the 05 suburban and they fit perfect. I also reworked my own harness using the guide that was created by Brendan at LT1SWAPS.COM. However, the wiring for me proved to be more work than I expected. This was my first time working on a harness and had very limited knowledge of wiring. It is definitely doable and now that I have done the wiring I have a better understanding of how it works. I was also able to retain the cruise control on my truck. I have put just over 1k miles on my truck with no issues and love the ls swap. I am by no means an expert with swaps but hope the information helps.