If anyone is really serious about dropping the coin on a supercharger, i would suggest trying harrop in prston vic
They know supercharges, have an in house enngineering facility, aluminium casting facility, CNCs and in house dyno
If they think there is a market for more kits and someone is willing to put their car and coin up, you never know
I know a few people there from the work on the mini with the TVS900