HP/MP boosts?

I have a level 87 priest that I'm considering resetting to LUKless. What I would like to do is to gain more HP/MP per level, but am unsure how much of a difference it actually is. I have 70 base LUK right now (66 resets will wipe out my meso savings when I MTS for NX for them, but if it helps with HP/MP, I'm all the more willing).

So my question is, how much difference would it make to my max HP/MP per level by, say, level 160, if I reset my LUK?

Thanks.