Van,
Your co-op should yield a good fit for you. Look for spindles marked 5N, which fit Italian the numbers after the 5N indicate the crank spacing. If you locate spindles marked Sugino the number indicates the shell spacing but you need to measure for crank clearance. For example a MW68 is for English BBs but could be for either double or triple.
Shimano spindles will be marked as the shell width and may or not have indicators for crank clearance. Best way to find crank clearance is to measure race to end spacing. Remember the problem with spindle taper for your crank arms. Smiles, MH