The distributor that is in the kit is P3690430. That is the hard part to find.
You can still buy the wiring harness and find many different ECU available instead of the orange one.
Halifaxhops usually has a few of the MP distributors avail for sale.
Sometimes the same p/n was used even when they made changes - that leads to some confusion.
The Chrysler buit ones had pretty good curves in them - that's the most important thing.