Full Cab Floor-any recent experiences?

[MARKDTN]

I have been a very long time lurker. I have had my square body for 30 years now next week. I have always wanted a 69 or 70 truck. So I am working a deal on a '69 C20 with a horrible rotten cab and a spare nicer cab that needs a floor and 1 rocker. I looked at videos and a great post here from about 5 years old on putting a full floor in. So looking for any recent experience with putting in a full floor with rockers. Whose did you use? I see to brace it before you cut it out. Any other advice? I am not really much of a body guy, but I have replaced floor pans on a '66 Mustang that came out OK.