Paint problem, Media blast or sandblast?

Took the trunk lid off and had to block some fish eyes that where out, later to find that someone used single stage enamel on the jams, and inside the the trunk lid and under hood, jams have been striped tpo bare metal, I hit these 2 pieces with a blow gun, and caused a massive rip in the paint, so I have to have them striped, are there any good, and FAST media blasters, or sand blasters around, didnt go to bare metal just back to the factory color, apparently who ever painted it before didnt prep the surface correctly, that would this cause what I have explained t happen.