Guys, my new to me '78 monte I knew was going to need a patch bottom of passenger 1/4 panel. Got to grinding and holy crap, there is a TON of bondo that appears to go above the trim piece line. What do I do- keep chunking this off and get into a situation of having to replace the whole panel(never did this before), or just clean the patch, rebondo and paint? Jesus, it looked great-never saw this coming...