Ok, Well Jason got busy on other stuff and so since I have a motor sitting here on a test stand with a PS pump bracket that was designed to also hold a airpump I started on this using an Astro van PS pump and got a couple ideas.
Held by hand this is the approximate positioning of the airpump:
This is the approximate postioning of the Astro van pump (before I installed the pulley):
Using a bolt I had laying around and spacer from an alternator this might be one way to tie the front and rear brackets I will make together:
Here's the Astro pump, now the logic is that the pump will fit in the same place, allow all the clearance required to adjust the belt, use the same belt as the air pump, and also it will cock the pump so the large filler hose is positioned correctly to permit the remote reservoir to both mount low enough to clear the hood and flow directly into the pump housing:
Using the Astro bracket off the back for a template I'm extending it so the bolt with the spacer will pass through the bracket to the inside of the section of bracket bolted to the pump. This will be the pivot point which is why I want to tie it into the front bracket I'll be forming:
Cut large enough to float it around some while I try and pick out where I want the bolt hole for the pivot point to go:
Now, if you recall... on the AMC pump mounted above this it also has a bracket with a square notch cut in it to place a breaker bar in order to lever the pump against the belt to tighten the works. This bracket is a mock up and I may add a an extension on it at the end to permit the same function but I'm not sure it's going to be neccessary. You can notice that they didn't make anything like that for the air pump and you won't get much flex out of the small pulley belt so I think I'll be able to just lever down on the 2nd pump with something like a short 2x4 against the upper pump to take up any slack. If that doesn't work then I'll extend the bracket and notch it for a 1/2" breaker bar or socket wrench. Jason was looking at doing something similar only modifying an AMC bracket to work here which would be fine but it won't be able to be used for an extended pivot point to the inside like I'm attempting.