Thank for the feedback guys!
Glint: I am without a doubt NOT plugging the pump. Even though the kids at my youth group are good kids, they still don't nerf.
Galaxy/CA13: I was thinking about just modding one of the with a tank expansion for whoever is reffing the round (a persuader of sorts...) or just for me.

I'll probably just end up CPVCing the rest just because I have so much CPVC and it's so easy.
Catmods: The only reason I don't like that idea is because I need as many guns as possible, and that would require two guns to make into one.
-iMod