4L80 PCM and Wiring Harness Info

[Beetle]

I have looked for about 2 days and getting a ton of info from here and ls1 tech and other websites but I cannot find a direct answer that will point me in the direction I need to go. This summer I am going to do a 4.8/5.3/6.0 swap in my stepper, I don't care what engine so long as I have one of those. I am going to boost whatever it is I get so I want a 4L80 (I know 6.0s have em already) to bolt up behind it. fleaBay has tons of these trans but not one seems to come with the controller. What did you guys do for a controller and wiring? Where do I buy said controller or harness? Thanks for any help.