A few minor issues while chang'n the trans fluid today, so look'n for suggestions

Hope this isn't anything to be worried about, but thought it was strange...Bought an AC Delco filter/gasket set,(FYI: paid more for it, (little US Flag), but ended up "made in china" anyway ), (from rock auto),
-The filter was quite a bit larger than the one I removed. it had one hole,(for fluid) on under side.
*the one i removed had two holes(one a little larger than the other)
DSCF4916.JPG DSCF4915.JPG DSCF4921.JPG
The other Issue I have is that one pan hole is stripped, took me a while to get it out, (pried it down with a screwdriver while turning, not good)
Any easy fix for this, besides a heli-coil? (working on the ground and not much room to do it right, & don't want to screw it up more than it is)
any good Mc Guyver solutions? Thin metal strip in the hole trick? (& gum, Ha!)
- oh, and was thinking of using a bit of gasket silicone around the pan holes on the gasket.
- good idea or waist of time?

Thanks for your suggestions!