Would that be acceptable ?
In short, No.
a) I don't understand your explanation. Do you think my method does not gives enough Ability Points ? Or too many ? It seems to me that you can create your 12-everywhere person with it.
b) I'm just realising I wrote N=75 thinking of the total, not the top up on 8-everywhere. I will edit my post. Anyway, a generous GM could give you N=95 if you prefer.