Amidst of everything else going on, I found some time to model several more components for the Graham supercharger install. It's definitely going to be tight, but it looks like everything is going to it fit quite nicely and I should be able to use a single belt.
It not quite done yet, but we are getting closer. I still have to place a pulley to drive the supercharger. There will also be a flexible coupling between the supercharger and the green mount. It's convenient that the supercharger itself will allow for some misalignment and fine adjustment by a height adjusting screw on the bottom. Graham allowed a great deal of clearance in the bolt holes where the housing bolts to the mounting bracket which allows the supercharge to move about an 1/16" in all directions.