Hi,
I am using:
- standard rubberised damper which has a single groove pulley around it (fluidamper is an option if you do lots of high revs work, but otherwise not necessary),
- standard 60s alternator with its standard diameter pulley (original cars ran a larger pulley diameter, due to continued high revs use),
- standard single groove water pump pulley (there are different offset depths, so make sure you get the right one)
I have an Aviaid dry sump setup, which uses a modified front spacer with integral toothed belt pulley to drive the pump, and I specified a shallow pan - shallower than the standard one. They supplied the mounting brackets for the pump too. I wanted it mounted down next to the pan so they made a new bracket, the standard one has it up closer to the alternator. Your positioning will obviously depend on where you stick the A/C pump.
Hope that helps.