[66-PMD-GMC]

I simply wanted to put a stock look, steel floor in my 66.
The plan was to do an all steel bed and then do a spray in bed liner wrapping the top edge of the bed to protect it from scratching.
The 66 is being built primarily to pull the 63 GMC and a 66 and 65 GTO.
I also take rust free Arizona sheet metal to Michigan for my son.
In all, my 66 will be worked.
I either need to find bed rails that will work with the steel floor I have and keep all the body lines right or buy another bed floor.
Live and learn.
I have until the last week of May to finish this truck.
What mods do I need to make to use a 73-80 bed floor? I have one of those and have thought of cutting it up if it will work.