Internally regulated alternator for Ron Francis wiring

I am in the midst of swapping over my electrical system to a Ron Francis Express system. When we connected the alternator per the instructions, the power feed to the alternator fried the wiring and alternator. Their tech line help are not Mopar people so they just suggested swapping in an internally regulated alternator. Has anyone had any luck with this swap? I have read where someone suggested 2002 Ram Van alternator would do this with the same bolt pattern and brackets. This is on a 340 in my Duster. Any thoughts would be appreciated.

Tom