My 37 was real bad as i had to make the whole floor boards too.
Yes i could of purchased every panel I needed but was quite abit of money , so instead of buying the floors , I bought a 4 ' finger break, bead roller, and 4- 4x8 sheets of 16 guage sheet metal and did my own. Plus it was cheaper doing it this way , and now I have a couple of cool tools in my garage.

The break and bead roller get used quite abit as my friends come over and use them to build their bodys for their IMCA, and sprint cars.

I know everyone doesnt have the money to buy tools , and Al has a good suggestion , Might check around for old hoods and trunks from body shops as they have tons of throw away parts from wrecks. as we have a huge metal dumpster we throw our old parts in .

Over lap welding panels is easier for sure , if done this way use weld through primer between the areas to be welded. You can weld along the patch panel edges or you can drill some holes in the patch panels evey 4-6 inches and plug weld , as this makes for a cleaner looking patch panel.
Then use a good seam sealer to go around the edges to keep water out.


Spray