What is with this "hard to find" stuff?

All you need is a TB adapter plate and a custom intercooler. WHICH...IIRC...Paul at PRJ or Tom Wright down in Whicita, Kansas (Guy who ran AnimuL Performance back in the day) still have those parts or templates.

As for the blower...

It is just a Whipple W140AX.

You can buy just the blower and make your kit. Probably run about 3K, ish.