Belt assembly and accesories for a 5.8?

[Boss 351]

Hi everyone. I need to install my alternator and a steering pump. I don't have anything in stock for this except for the alternator. I need to find some brackets and pullies that will fit. My problem is finding the used parts. There aren't many 5.0's around and no 5.8 around here. Do you think parts from a 3.8 V6 would fit?

Thanks