67 dart 270

I havent worked on my 67 as i should I have been busy with other things, and frankly I have ran out of money which isnt hard to do. I have been worried about the quarter panels even though I had them replaced and spent a pretty good bit to have them done by a so called metal working expert,something in my gut keep telling me something was wrong and some problems lie under neith all that primer.So i stripped them down and this is what i found. BONDO every where the whole quarter is covered, around the weld is a 1/8 to 1/4 inch thick and in some places its a little thicker.Lookes as if he beat the welds down instead of grinding them flush.Rust holes in quarters around the back with bondo covering up. Im so sick i dont know what Im going to do!!!