I would go with main studs and align hone the mains because the caps can change with studs. As far as bearing I can't see any reason not to just run a standard P bearing set. Drill all the gallerys. If you are only turning 7,000 you may want a high volume depending on your clearances and oiling system. If you are turning higher and have the oil restricted save some power and run a standard pump with a port job. You shouldn't need any hard block. Nothing wrong with a short fill as it will dampen detonation.

Leon