your take on BOV's and WG's

If you just bolt the system on without addressing the piston rings and run the boost your talking you'll mess you stuff up quick. The boost you want need the piston rings to be addressed for a different setup and if your at that point I'd also put in forged pistons (I'm using Ross Racing pistons, the are a 1/16, 1/16, 3/16 ring setup and the pistons are designed to handle a lot more boost then what your after, I reccomend them).

What are you suggesting he address with the piston rings? The only concern I would have with the rings would be insuring that they have an adequate spacing below the top of the piston so that if a slight bit of detonation happens during tuning the pistons won't chunk. If the rings aren't mounted too high I don't see a problem with 10-14 PSI on stock stuff.
In my experience stock internals will hold up to a lot more than the aftermarket will lead you to believe.