Good call on going first class on the oiling system and other internals. I agree with 10:1 being the upper limit on pump gas. Also agree with Pat that runners are a bit long and you may sacrifice a bit of performance at lower RPMs..

With $7-8K to spend, I'd talk real turkey to Pat McCarthy and have him build you a monster motor. He's the best of the best - seriously - look at his pictures. Runs a machine shop where you can eat off the floor and has built a lot of proven combinations for a lot of years. Might even save a few bucks to put elsewhere in the car!

Regards,
Glenn