ls1 swap 92 gmc extra cab sas 1 ton and a little more

So I have built this truck and I'm ready for the ls1 swap the motor will be here in a day or two and I'm looking for how anyone has tied there harness into the truck to keep EVERYTHING working! Heater a/c gauges cruise control etc
Details to come on the truck! Hope the photo works

Btw this will be my second ls swap first being an 04 Dow lm7 into my 63 nova!

I swapped in a '99 LQ4 in my '93 ECLB 4X4 pickup. Everything works. Stock guages, A/C, four wheel drive, etc. A good wiring diagram for your year truck is a good idea. I got one and it helped me out alot on figuring which wires were what, which ones to save and which ones to get rid of.