I'm looking at doing the same thing (Metri-Pack) with my Duster for the same reason (intermittent no-start issue). I know this is an old thread, but any part numbers and/or pictures on what you did?
sorry I don't have any part numbers...I just went to a local industrial electrical supply house and purchased a 6 way Metri-Pack connector then all the individual terminals and seals, it was like 12-14 dollars total IIRC. Be forewarned though, the 6 terminal connector won't fit thru the collar, so you'll have to have a pin removal tool to remove the pins, slide the harness thru, then plug them back into the housing.