Ebay GT45 + 5.9 Magnum + E85 blow thru

Time for cometics, studs, and more boost! Glad to see it's not hurt too bad! Looks like it was running pretty good before it went boom.
A buddy at the track has had similar blown gasket issues on both his NA and nitrous fed SBMs. Seems to be common on small block Mopars.

What thickness Cometics would you guys recommend. I'm thinking about something a little thicker then what I had, maybe 0.030 compressed. Or should I go thicker?