If you get one not prewelded, you can move stuff around to where it'd needed. I used an amd one before and it had to be rebent to fit up snug to the bottom of the rails. Another part amd makes I won't use. Goodmark/sherman for example, 1pc floor pan is half the price and it's the same thickness as oem. With that said, they also make a lot of good parts. Rockauto has good prices on their stuff.
68 Road Runner, 69 Belvedere, 71 Challenger Vert
340 barracuda, 01 Ram CTD, 95 Ram, 04 Ram, 85 Daytona turbo Z
99 Trans Am, 66 GTO, 06 Magnum RT AWD