#1 most important thing - Super speedways are notorious for oil starvation because they have REALLY long corners. We only have road courses around here, so I don't know what works. But, you really need to make sure you have a solution in place before taking your new motor out on track.
Regarding brakes - I'm shopping also and the search key has not been all that helpful. Folks seem to feel strongly about whatever it is they have on their own car. StopTech (what appears to be a Brembo copy) gets a lot of kudos, but the road racers here in Norcal seem to smoke through rotors at an alarming rate. Brembo and PFC rotors, on the other hand, are reported to last the longest. In my opinion, the best solution would be StopTech calipers (stiffest) with PFC or Brembo rotors (JONB, you listening, how about a custom kit?).
Cooling is another variable that affects folks opinion of their brakes. While there are a lot of variations, Henry Cone's kit (available from PartsRack) may be what you want. Unless you're really fast. Then you should jump straight to 4", or larger, cooling ducts and fitted backing plates.
Finally, you need to make sure all the components are balanced. If you mix and match calipers on your own, you may need a proportioning valve to get the balance back. Complete kits usually have the correct piston sizes to be compatible with your stock master cylinder.