1979 K10 floor project

[Aaronb_dsn]

Im going to post this again in a different spot, I am in desperate need of some help. After 2 more days of searching and looking at my panels and getting nothing done, I can only imagine the pieces I have are WAY oversized... A little background on my so you dont think Im a complete idiot, I have replaced floors before, I restored a 1948 GMC and did floors in that. Please help. (pictures are in my signature link.)

Im trying to replace the floors in my 79, I just bought floors, cab mount, cab supports, and inner rocker panels. I didnt have much to work with for existing metal. Can someone take some pictures for me of how the cab mount and inner rocker fit together with the existing metal? I have searched many posts and I can almost tell, but its just not concrete enough for me to melt them together yet... Thanks, Aaron