I guess I need to make a RM, RM, Th, BB party, and play through until BB is 99 on origins.

But this shows what I was saying about DoS
DoS characters are supposed to be set against the 1-50 leveling scale, but with more HP and MP growth(or so I've been told). Their damage "should" align their 1-99 scale to the original 1-50 scale.

PS1 easy mode did not align to the 1-50 scale, and was a straight 1-99 scale, being 49 levels worth of growth, higher than any other version.
If you used 30 casts of giant's gloves, and tempering... I would reckon my 99 BB on origins would do around 80,000 just as a guess. I'll try to experiment next time I play a little on the origins version.