Good news - frame rail still dry spotless - in primer after 46 years

I opened the passenger side floor and found the passenger side frame rail is dry, hard to see in the light from the LED drop light and covered in grit from cutting open the floor I was plesed to see how clean and dry it is.

better shot of primer from inside of passenger floor pan that was the top of the frame rail

note I left the seat mount nut in place for the replacement passenger side floor

Dad's progress on DS rear floor undercoating removal - the red is primer not rust