That would work well.
I used a XP=DP break down based on so every 500XP = 1DP and adjusted the stat bonuses to make the game more stat driven (70-79=+5, 80-89=+10, etc). Skills costs are cumulative and based on the 1st number in the classic RM cost so 1/5 = 1DP for rank 1, 2DP for rank two, 3DP for rank 3 etc.. a skill of 2/7 would be 2/4/6/8 etc...Level bonuses were flat 5*+/level so, +3/level would be +15. I'm sure there would eb all kinds of hiccups with it; but, hey you never know until you try.....