Before I get to the roll pan, I'm going to finish the transmission crossmember.
Once I shaped the top and bottom plates to match the side plates I fully welded all four plates together. Then carefully grinding with the 4 1/2" grinder I cleaned the welds to where the whole crossmember looks like one tube bent to this shape.
Once I was pleased with the main structure I just had to create the mounting pads on the ends and the center mount tab for the transmission.
One thing I won't do without is a sandblaster. It is more than just a way to clean rust. Often times after welding and grinding there is the grinding marks to deal with. I like the sandblasting because it removes the markings from the grinding and now the surface consistancy is pleasing to the eye.
The sandblasting also leaves a good surface for most primers and coatings.