Removed the screws and gently "unbonded" the fiberglass from the brackets. Came out pretty good and fits nicely.
Before that, I drilled three of the aft/forward wheelpant attach holes to #27, removed and installed nutplates on the aft portion, then drilled out the other holes and added nutplates to those. I also drilled out the 8 #19 attach holes to clear them on any leftover resin.
And, after I countersunk the attach holes, reattached the wheelpant and it looks great.
Retirement is good. It gives me the luxury of having plenty of time of at least TRYING to be a perfectionist on this project.