Looks interesting, Scottie. Just one point, though - if you take a drive for the supercharger from the [redundant?] ignition drive, you will be relying on a very light timing chain and an even lighter duplex magneto / distributor drive chain, unless you plan to revamp this area of the motor. Also, any output to the blower will be at half the engine speed.
If you can get a drive from the crank somehow, it can be more robust and you will be able to drive the blower at a greater choice of speeds and much faster if you need to.
B.W.