I patched the fuel filler hole in F-1277-R. To non-builders, it looks like part of the plane. RV-12 builders will notice it but will be more interested in your fuel tanks than the patch. If you ever decide to put the original tank back in for some reason, it will be easier to remove the patch than to cut a new hole. F-1277-R and F-1277-L are different where they meet in the center. I do not know about the alignment of the other holes.
Joe Gores
Joe - I just went out to the shed to check and yes, the 2 skins are mirror image. I put the left skin on each side of the fuse, reversing it for the right side and the holes line up. The L and R skins are mirror image apart from the filler hole, and the joggle on the upper edge of the R which I assume fits over the L. Should be no problem to you to make the joggle. Will send pics if required to clarify.
I'm intrigued by your mod - please show us.
Cheers
Shirley