47 Chevy Truck Floor Question

[WACONUT]

Hi Guys,
I bought a 47 truck about 6 weeks ago that had an older restoration. The truck has a 77 Nova front sub frame and rear end. The truck is fairly solid except for the floor. Looks like it sat outside a lot with leaky window and cab seals and the floor set in water.

Anyhow looking at the available restoration parts for the floor it appears the complete floors that are available say they fit 49-53. The repair panels say they fit 47-54. I would like to put a complete new floor pan in the truck when I take it down this coming winter for restoration. What would be the best approach to replacing the floor? Can I make the complete floor for the 49-53 fit the 47?

I have been fixing a few mechanical issues to get it road worthy to drive for the summer, just planning ahead for next winter.

Thanks!!
Anthony