Thx Shu47.
FlatheadTed the fan is stock with smaller dia. 4 blade used on the smaller 60hp version flathead. With the way the engine set-up turned out it was the only early ford fan I could fit between / under the radiator and cooling tubes. I'll figure out a way to check it but am pretty sure it is as balanced as stock gets.
Ross, I'll check on finding a stock generator bracket and see if I can that to work, in the mean time I'll see if I can figure out a support feature for the rear of the Alt.