I have some custom front crankshaft pulleys for sale.
It would be much easier to attach a blower pulley to one of these, rather than to the crappy brittle piss weak factory one.

D that's what I'm looking at getting. Although I'm not after the twin pulley alternator anymore because it's the later model a series with the alternator on the spark side.

A14force I've already got a custom made twin pulley that d has supplied . What have you got?

latest plans with the motor are to mock up everything I need on the stuffed motor, and transfer it onto the running car and see how it all goes. Then start a rebuild on the stuffed motor. I'm contemplating moving the alternator onto the passenger side similar to the early a12's and mounting the supercharger on the spark side, and utilising a toothed drive system that kemotorsport can supply. I have bought a genuine alternator bracket (from thermo housing) to assist with mounting either the charger or alternator depending on what route I go.I can see the water inlet pipe being in the road though, may have to shorthen this.