If ya get stuck, I'd be willing to help with advice.
There are also 5-6 dudes on this forum that have a TON more experience that I'm sure would do the same.
The 460 ford forum is also a huge resource for roller c6 information, those guys are throwing 500hp MORE than you or I at a c6 and it is living.
Anyway, if I was forced to buy a c6, ready made, I'd be calling Jay at Broader Performance. I have never seen a TCI or B&M rebuild that was really mind blowing, seems like they are just overhauls and not worthy of the price tag.