Did the same repair my self, fun with sheet metal!!! If you are welding in the pieces make sure you have a spray bottle of water and a big welding blanket..... There is lots of little dust bunnies under there that could cause a fire with the sparks.
69 RA III T/A Auto 69 Sprint vert 3speed ( sold to a new home) 69 350 coupe ( new home in Denver) 69 350 HO 4spd