Valves for RHS heads

Can anyone confirm those ebay valves that they do fit and are of good quality? Where to buy ferrea valves then? =)

People use the same brand for slant 6 big valves, the epn..

Engine pro is the the deal of all, ferrea is pricy, good but pricey..

Im running the engine pro 11/32 2.02 nail head w/under cut stem intake valves.
I also have mancini stainless performance semi tulips in my 340.

Brand preference is blupttttt... to me, I want what will do the job and not break the bank or my motor.