Buccaneer HP washing

I want to HP wash my Buccaneer to 18k HP by level 160 and I am wondering how much INT equips I would need to pull this off?

Right now, I have 120-175 INT in equips.
Level 30: 124
Level 50: 150
Level 120: 172

Also, would this be the best way to HP wash?

1. 5 AP to MP while wearing INT gear
2. Wash out 5 AP from MP
3. Add the 5 AP into STR
4. The next time you level up, add AP into HP. HP ability applies
5. Wash out AP from MP
6. Add the AP into STR

I want to HP wash my Buccaneer to 18k HP by level 160 and I am wondering how much INT equips I would need to pull this off?

Right now, I have 120-175 INT in equips.
Level 30: 124
Level 50: 150
Level 120: 172

Also, would this be the best way to HP wash?

yes, that would be best way to wash the points out, though technically you only need ~140 int in gear to do 5 points every 2 levels like that, so you could do a bit more (maybe instead of 5 to mp, add 4 to mp 1 to hp, then take from mp, or every level add 3 to hp and 2 to mp, and wash out, but all of that would take experimentation on your part, im still struggling to get 140 int lol.)