Stabbing my 6.1L build up in a 92 Sierra. Need harness to get started.

Would prefer 99-04 harness with Knock Sensors on Lifter valley. Need everything that goes from the engine and accessories to the firewall. for an OBS harness rework.

I would also like as much info on the donor vehicle as I can get. Possibly a picture of the RPO sticker as well.

Thanks in advance,
Clint