If you open up FF1 ROM with FF Hackster, you could find out the MP totals for each Lv. I.E. At Lv4, A BM would get 1 Point in Lv. 1, 1 Point in Lv. 2, etc. I could do it for you if you'd like me to. I'll get all the other info as well(HP at each lv., defense at each lv. etc).
EDIT: I just realised that you've already been using it, but if you don't have the numbers yet because you're working on other things, I'd be happy to get them for you. On a side note, if this is gonna be "for purists only", you might wanna leave the caps lock on all the event items.
