About to start on multiple projects on my 69 Fairlane Fastback. never have attempted to replace sheetmetal before I'd like some info on replacing some inner fender panels. Should I use an air chisel to separate the welds?a cut off wheel in a grinder? My plasma cutter ? . someone clue me in before I jump into it blind. Plan on checking my 351 tomorrow to see if it will crank & run then take the front of the van off to get it out. Sure hope it fires & runs as I put a lot of work & money into it when I was useing it for my personal driver.