Bought a Suburban

[f.monroe]

I asked a question about converting to TBI on my old 77 . I picked the suburban up today since it rained and there wasnt anything else to do . It turns out it is a 1989 Sub. and there are plenty of good parts . I wish it wasnt a 10 bolt 6 lug rear since it appears to have 3.73's . I would have liked to use the rear in my truck . I have a couple questions about the thing .

1- Are suburban rear leaf springs the same as truck springs?
2-When I pull the computer and injection out , should I take the entire under dash wiring or should I buy an aftermarket wiring harness like Painless Wiring .
3- are there any significant differences on the under dash A/C components?
4- If so would it be worth swapping the A/C controls and main box into the old truck . The newer controls seem to move easier and I assume are more electric than cable operated .
5- Are there performance camshafts and chips still readily available for TBI motors ?What experiences have you had with them?
I intend to have the truck painted and wonder if it would be worth gutting the cab and installing these things after it is painted .
I am thinking about pulling the engine from the suburban and rebuilding . That way I will have a new engine if I get the fuel injection transferred over . I am going to have a parts listing maybe this weekend on the parts I dont intend to use . I will get pics and post it on the parts board . Sorry about the long post . If you can answer any of the questions , please do . Frank