There is no PHRF penalty for inside tracks...the extra couple of pointing degrees are well worth the effort.
The challenge to installing tracks is figure where they should go, and having a location with good access from the underside. Many builders may provide location specs for installing inside tracks that were optional. The builders of performance boats generally included inside tracks as standard.
Lots of P-30 around, you should be able to find info from other owners. I would think a track for a 85-110% might end up on the forward corner of the cabintop.
You would need a seperate track for the bigger genoas, I think the P-30 has narrow side deck aft, so inboard may not be as inboard on other boats. There is a thread on this subject in the last year.
Certified...in several regards...