Choosing cam for 5.9 magnum

I got my block last week and ordered bearings, gaskets, etc and assembled the short block today. The pistons all seem to measure around .004 in the hole. So nearly zero decked. Summit lists the KB107 pistons at +5cc piston volume. I'm kind of confused at how to enter that on summits compression calculator. Would it be entered as a +5cc for the dome volume? If so, that'll put me at a 10.7:1 with a .045 headgasket and 62cc EQ chambers. I cant seem to find a compressed headgasket thickness for the fel pro 5.9 gaskets. So im completely guessing at .045.

Would someone with more experience check my compression numbers?