MagnumMPI swap - crank pickup fix?

I've been debating about some kind of MPI swap into my Duster (both Magnum and 5.7 Hemi). One problem I have been struggling with is the required crank position sensor in a Magnum swap and how to keep my 4 speed in the car and make it work.

Just noticed that the notes for the MPI kit that Mopar Performance has for the 390 hp crate motor notes that a flex plate P4876706, a Magnum flywheel, or a DUAL TRIGGER DISTRIBUTOR is required.

Search for pn P5153731 and read the text. It might say "available spring 2007", but that is related to the kit, not the distributor (I think). The current MP catalog I have doesn't reference spring 2007, so I am assuming it is related to the kit.

Not sure which distributor it is, but I know that the lean burn systems sometimes had dual pickups, but I also know that later on the TBI motors had a Hall effect pickup like the FWD motor 2.2/2.5 used. Not sure if it was a dual trigger or not.

My assumption is that with a dual trigger, the distibutor could be made to read the crank position for the computer. Don't know what (if anything) would need to be done to make it work, though. If possible, it would remove the need to figure out the crank position sensor on the back of the flywheel.

Anyone know anything about this?

I know the balance is different, so a complete motor swap would require dealing with that, but I am also thinking about swaping the top end and electronics on top of my numbers matching shortblock. I wouldn't have a roller cam, but the rest would be fine if I could figure out a crank pickup without having to change my clutch to a 143T setup just so I could get the tone ring on the back of the flywheel.