Yes, I backed out the limit screw to allow the FD to move outbound as far as it would go. It was not enough. I am willing to spend for a FD and two bb's if that would make for the best setup. My aim is to have a setup that is reliable and trouble free.
A FD I recently purchased for another project specifically said it required a 50 mm chainline. How many derailleurs have that requirement, I don't know? So I would be concerned with just bringing the crank set in 2.5 mm and then having to go and purchase yet another bb. Wouldn't it be wise to just purchase the bb's that would accomplish that the first time?