Thanks for the comments Hughes and Deadeye,

The landing gear attachment area is done and I won't be able to get blind nuts up in there. I have a number of airplanes with landing gear attached that I have drilled and tapped 1/4 x 20 into at least 3/8" thick ply hardened with ca and they havent stripped out yet. If I do have the problem I will certainly add blind nuts. I've also never boiled the plastic 1/4 x 20 bolts. Will look into doing that in the future.

I'm going with the supplied ABS wheel pants on this airplane. They were fairly easy to get together using ca on the 2 halves. I then used Bondo brand glazing and spot putty for the seam. I have at least three coats of the glazing putty on these pants as it does shrink as it drys.