I used the Ignitor Petronix kit for this Accel Duel point Dist. Its a great option, and works with the Aftermarket MSD box's also. These old dist can still be found fairly cheap, and I wanted the added look of Nostalgia for my car. Of coarse hidden under the dash will be the MSD 7 box.
The kit was about $90 IIRC. And works well if your wanting to do something like I am, or want to keep the original numbers dist.
If your not worried, it might be cheaper, if you scrounged the junk yard for a late 70's early 80's electronic system. Stay away from the lean burn stuff.