Hey Mike, I see from the picture that you're running an aluminum water pump... What kind/style of radiator are you going to use with that???? If you're going to run a 70's or later radiator, you should be able to use molded hoses from a 70 or later a-body to work... If you're going to run a 60's style radiator then you won't be able to use molded hoses...
However if you're going to run a 60's style radiator, I would change to the cast iron water pump so you could run the 60's style molded radiator hoses...
It also looks like you have the 60's style alternator mounting bracket... I'm not sure if the pulleys will line up with that one or you may want to look into using the 70 and later alternator mounting bracket...
If you stay with the aluminum water pump, you may want to consider changing the alternator bracket to the 70' and later style and also running the 70 and later style water pump pulley so the belts will line up properly...
If you run the cast iron water pump, then go with the 60's style bell shaped water pump pulley for the alternator belt to line up with the other pulleys...