Rot question

Dave69 shared my thread
I am not an original guy and intend to modify my A body rather heavily, like most of my builds.
That being said, I cut a section of the inter fender out (that had some rust too) so I could access the rail section I wanted to replace. I had the car on stands and used jack screws to support the front of the rails, plus a cross bar for a little extra support. It took me about 10 hours per side. I didn't cut the entire thing out only the top down to about 1 inch from the bottom on the inside and .375 from the bottom on the outside of the rail. Measure a lot, right it down, and I recommend doing one side at a time and one side per day. For me I want to cut and replace in the same day so I don't forget something. The classic ind. part may be perfect for your problem. I however had more rot and needed more metal, the donor rails worked out great.