.030 5.9 magnum

I have been thinking and looking at my piston choices for this build. Based on what 70aarcuda found or knew the kb107's will be .1 higher in the hole than what is currently in (badger b209's) which are .085 in the hole which puts the kb's at .015 above the deck. right? And I will have to use a really thick gasket to make sure the valves dont hit and so I will have enough quench.

now if I put kb 362's (ch-1.645) in I will be .016 in the hole and could use a thin gasket to get quench where I need it and I won't have to worry to much about valves hitting at high revs.(i have a buddy with a 383 stroker that didn't have enough clearance and reved it to much and bent a valve and messed a piston)

Am I doing the math right or am I way off and over-thinking stuff?