Starting a Sair

Soo I'm starting a sair with this ultimate adventurer thing
Building my KoC rite now. I got a few questions about sairs, I appreciate every response
So
1-) Does battleship have a SET HP? If it does how much is it? Currently battleship HP = levelspast 120 * 2000 + battleship Level *4000. It apparently increases to 3000 and 5000 respectively.
2.) (Based on 1st Question) Does battleship's HP depends on your HP, or does your HP affects in anyway battleship? Your battleship's hp is not affected by your current HP. If you're not on your ship and you get hit, your ship's HP will not decrease. When you get hit while on the ship, both you and your ship lose the HP.
3-) Would you consider a sair the least ranged class played? (I like playing classes with a low population ) Well, that spot is either for a Marksman or a Corsair. I see more corsairs in the area I go to than MMs, but there might be more MMs overall.
4-) How many washes would it take to get a Sair to 10k HP, using a CZH, CHTP, and with the 20% extra HP and MP from Ultimate Adventurer?
Uh, someone with an HP calculator can take this one.

Thanks for the answers, I appreciate them a lot
have a good day