Hello Joe, and welcome aboard.
The problem in the fuel line is not the steel lines as much as the rubber hoses that connect various parts - tank to line, line to fuel pump, pump to filter...
I would start by trying to determine why you can smell raw gas for days. See if you can determine where it is coming from and look for any seepage. Smelling it for days is not normal. Look closely around your fuel sending unit at the tank, it may be that the O ring has deteriorated or dried out and leaking from sitting so long.
Do you still have the charcoal can set up in the car? Does it have the original gas cap on it, or some aftermarket type? Does it always smell of gas, or only after filling the tank?
Now, to answer your specific question. The most economical method would be to purchase new steel lines, either pre-bent or straight lines and make your own bends and replace the connecting hoses with new hose designed for ethanol blends.
C
