Oh. I see u want to get it down to bare wood. That’s some work. Are they shaker style or are the panels more intricate and detailed? I’d find a handyman. Conna cost u $35/hr for a day or two. And it’ll take more than sanding. You’ll need chem stripper, assuming that wont harm the wood. I know a high end wood guy that might be able to recommend someone. And another guy who has lots of unlicensed minions.