Vintage Air Compressor install, I am lost...

[Oregon 1967 GMC]

I have already put on the evaporator and condenser on the front right with the lines coming out by the battery and the firewall plate etc. and want to go ahead and mount the compressor. I have a little bag of hardware from Vintage Air but no bracket? I installed power steering pump on the front lower left of engine. I've never done air before and have a non-ac truck.
Few questions:

1. Do or should I move alternator to the left side now and how is that accomplished?

2. How do I mount this huge and heavy compressor? Do I need to order a mount separately?