71 Jimmy floor pans

[JUSTAIM]

Just picked up a 71 Jimmy to add to my collection, need to replace the floor pans, along with rockers, etc... but just can't find the floor pans. Does anyone know who might sell them or do I need to find a parts car. I read most of the other threads looks like this will be fun, gonna try and do this myself this summer. Anyone from SoCal, know of a good place to media blast, like to do that first and know for sure what all I got to replace. Any help is appreciated.