the Red Dot units are great, but take up a LOT of space.
if you look around the internet, you will find literally dozens of different ways people have installed them.
I personally decided I didn't like the huge external condenser, and installed a fender mount condenser instead.
As for the evaporator, I had an old piece of steel about the right size and just ran it vertically down from the B-pillar ro the floor and bolted it all together.
my thread about it:
So I just got in a fender mounted A/C condenser to install in the left rear fender. There are a couple things that I need some assistance with. Does anyone know the dimensions for the bracket to hold up the rear of the condenser? I suppose I can just do some measurements of the condenser...
www.steelsoldiers.com