As for a pump selection, I prefer to go on the larger side just in case I ever want to switch to full methanol. I'll be running E85 to start with, and a fuel pump controller to help prevent heating the fuel.
Whatever you do, make sure you pick a good filter to prevent any pressure increases.
Weldon 2345A and flow sheet from Kinsler Fuel Injection:
Weldon 14000 Controller:
Fuel Filter comparison of Kinsler's smallest filter vs. Aeromotive -10AN inline filter:
That is possible you would just have to modify your fuel pump hanger . I wish I would have done that then use a AN Y fitting to merge them on the outside of the tank .