[FC] floor panel replacement

[corvanatics@corvair.org]

Any ideas out there on where to get a replacment floor panel?  Do I need to 
cut one off a FC or does any other gm trucks use the same ribbing as the FC?  I 
could get a bunch of engine access covers and have them welded together? The 
rampside I have had the floor cut out and replaced with flat steel bolted on.  
Looks awful and I want to make this FC nice.

Thanks
Pat

61 campside
64 rampside
67'coupe
69' coupe
57' Studebaker silver hawk