LS7 with an Automatic--options with cruise control

[Tempstop]

I have a 69 Camaro in the planning stages. Already have a ls7 out of a z06 and plan to mate it to an automatic. Talked to John at Speartech about a harness. He told me the only transmission he has been able to have cruise control behind a ls7 was a 4l70e.
I was wandering if anyone had any other better options. I really like the compushift option with paddleshift, but I think I like cruise control better. Was wandering if I can have it all?
Knew a guy with a bunch of new GM 4l70e units with converters for $1200. So I bought one. Now I would like to upgrade the transmission with the necessary parts to make it a little more likely to live behind the ls7. Wanted some recommendations of which parts to replace. Also interested in some recommendation on a converter. I'm not a racer, so not looking for this aspect.
Thanks Tim