Uni's are nice, Used mine once and lost the dam thing, there went a big chunk of change.
Matt, I set about 5 fires when doing my rockers and struts. One of the times I was 99% sure my car was going up in flames. I never ripped my interior apart so fast before in my life to put those flames out. That big one was in the rocker area though, but from the bottom of the car to the bottom of the coupe small window. After that I armed myself with a big spray bottle of water.
You also didnt need to drill 100% through the metal, only the main plate was needed! I just replaced the factory spot welds with my 3/8 hole and filled it with the mig.
