I was able to spend a few hours today using my angle grinder and stripping wheel to continue with the descaling and stripping of the underside of the car. Geez, what a nasty job. I ended up getting to the entire passenger wheel well and some more of the driver side pan. I'll be able to post up a few more pictures, but I'm pretty happen with the results considering the amount of tar, primer, and paint there is to cut through. I'm hopeful to have the entire underside done by the end of the weekend.