Frame/Cab support questions.

[that_red_c10]

Hello, I've been inactive on the page for awhile, but finally I'm back, however with bad news. Pretty much all of the pieces that hold the frame to the cab have rotted away, and I do not have the ability to do the repairs on my own. If anyone knows, roughly how much would it cost to fix all pieces, and would it require me to do the floor pan/rockers as well (one rocker is fine, the other is gone, floor pan is gone for drivers side foot area, but rusty throughout)? The frame on the truck is solid, it's just the cab/bed support pieces. I will get photos next time I am near the truck (it currently is not at my home).