I see what you’re saying. That general idea might work, but not with the existing trigger wheel and brackets (they would need to be shorter) and not with a balancer of similar size to what Michael has.That is correct.
From the looks of it, it could still be mounted behind the crank pulley, just the trigger wheel needs to bevel back towards the balancer. Realize that might not work for the aftermarket balancers though.
The 94/95 setup here unfortunately will not work with a double crank pulley. It’s designed to work on a stock belt system or a single belt blower setup such as ProCharger uses.