Transmission help

[MoonMan]

I plan on running either a 4L60E or 4L80E (see below for use). I have seen rebuilt ones on Ebay that can handle 500ish hp for ~$1,000 including converter (I would not buy this type of part off Ebay...just listed for comparison purposes). On the other end of the spectrum is $3500-4000 for one from Bowler, TCI, Level 10, Coan, etc.

My question is isn't there any middle ground? If not, that's fine I don't want to skimp, however, I'm already over budget and don't want to spend unnecessarily for what I'm running.

I have a 72 Camaro with an LS1 (from a '00 Corvette). It will have an upgrade cam, heads, headers and cold air induction. So probably 450-475 hp at the crank??? Not a track car but will be run hard when driven!

Thanks for your time and any guidance,
Tim