switching to aluminum high flow waterpump, questions...

Ok I have a 66 273 motor with the original iron water pump, that needs to be replaced. I purchased a flowkooler aluminum water pump. I want to make sure know everything that needs to be changed... I already have an aluminum radiator with passenger side outlet, and a timing cover off my 1970 340 with the correct timing tab for a passenger side outlet water pump. So I need to get a new alternator bracket and power steering bracket? what pulleys would i need? I am using a pusher electric fan. I have an alternator bracket in mind, but no idea where to get the right power steering bracket. Would a power steering bracket out of a 1970 small block car work? Any help is appreciated, and yes i know going with the factory cast iron water pump would be easier, but I am switching over to the 1970 340 next year so I didnt want to waste money on a part i can swap over. car is a 66 cuda. thanks in advance.