Howdy. I just purchased a 67" 400 /4-speed convertible. Discovered that (a) RH/LH rear passenger floor pans and (b) LH front driver side pan are rusted through. Also discovered that (c) transmission tunnel was cut up on the sides and then poorly patched (reason unknown). Interestingly the underside of pan is in great shape (original paint, no rust) and support braces, trunk and back seat are also solid. Photos attached.

So, question is; "do I patch the three sections of floor pan and the transmission tunnel - or just replace the full pan?" I am inclined to replace entire pan as my initial take is that the labor to do multiple patches will be about the same as just replacing the entire pan. I understand that replacing the entire pan requires additional planning, measurement, temporary bracing, removing seat bases, etc. but I think the end result will be better.

And, should I decide to replace the entire pan, what brand replacement panel should I go with - Sherman, Dynacon, Goodmark, Other? I want proper gauge steel, inclusion of support panels for Convertible and want to avoid having to buy and assemble all the various components. And I'll just cut off the back seat pan.

I am willing to pay more for higher quality replacement panel with the proper supports included to reduce labor time /costs.Will be paying professional shop to do the work as I do not have the cutting tools nor welding equipment - so labor matters as I am in the Bay Area and body shop rates are high here.

Any guidance on patch existing vs. full pan replacement and replacement product will be appreciated.