I think those flares look great. I also have a bad bit of trail damage I would like to cover up on my rear passenger fender.
I did a quick google search and it looks like there is a cut out for the gas door on the smaller flares too.
why not cut your fenders out more?
you took less out than i thought you would. cut a little higher and wider and spend a little more time smoothing it out.
mine for reference:
