Double Groove Crank Pulley for 225cui slant 6 power steering conversion wanted!

For my 71 slant 6 power steering conversion I need the additional crank pulley, which is running the second belt to the power steering pump, which is bolted on to the balancer.

Looks like this:



and it can be bolted on here:



if bolted together it looks like this (sorry for the bad quality):



I think this is just an additional steel pulley that is bolted on the same kind of balancer that a car w/o PS would have.

So I'm lust looking for the bolt-on crank steel pulley for slant 6 power steering.

(like in the first picture)

Thank you very much!

Guido.