Hello all, I finally have started my LS swap process and I chose a 5.3l LC9 out of a 2008 chevy suburban. The process for mechanically fitting this into my 3rd gen camaro seems pretty straight forward.Unfortunately I just kind of jumped into it and didn't really think about what I would need. I tried my best to get the wiring harness out of the car and was not successful. They cut it all to hell when they pulled it as a result. This engine does not have VVT and I will be deleting AFM.
Anyway, my gripe is that I cannot even after multiple days of searching this forum and others cannot figure out what harness, pcm, tcm, and 4l60e is going to actually be able to work with this thing without spending thousands on contolling it. I seem to have made a mistake buying a gen IV engine over a gen III as the wiring is more complex/expensive. I do not have 700 dollars for a wiring harness. I'm on a really tight budget for this as it is.
I see ls2/ls3 with 6l80e wiring harnesses on ebay for around 100 dollars all the connectors I see on this engine seem to be in that harness, I have experience doing wiring in cars and am not afraid to adapt/lengthen/shorten/add connectors if I need to.So my questions are:what year range 4l60e is going to be compatible with the tcm/ecm for this engineAre all gen IV 5.3l computers the same and if not what year/make/models will workwhat would I need to do to adapt this Wiring harness to a LC9 and a 4l60e.
heres the engine:

 

Find a harness and pcm from a 2008-2011 truck that had 5.3/4l60 combo