Just thought I would throw an update out there on this old thread...
I talked to CPR. The issue is with the "arrow" inserts, e.g., lock, harem, orbs, extra ball, multiball, etc. To the best of their knowledge TOTAN was the only title to use these inserts. Since the molds are gone, it would cost about $25k to create new molds plus the cost of the inserts themselves.
Not holding my breath that this will ever happen but I'll keep my fingers crossed that they find some way to work it out.