The honda pistons will need to be skimmed regardless I think, so you really need to weigh up whether you want to pay extra for the machining or see what it costs to get some custom order cp's with the specs you need. Then your valve pockets, pin and comp height will be in spec straight out of the box. You could speak to Brad at Spool Imports about that as he should be able to organises that sort of thing and already sells CP 4g93 pistons.
What quench height do you want to run buddy? I ask it because if you want to run a .8 gasket and zero deck you're really pushing the limits to how small a quench to run, ideally you'd machine the piston down a bit more to increase the distance, but you're going to get the valves closer to the piston that way too.
