Everytime I am scrolling through FB marketplace or Craigslist for fishing boats I think about maintenance and storage but I keep looking a couple times a month.
IDFG pays ID Dept of Lands per acre for land that is open to hunting, fishing and other recreational access. A quick search shows 2.3M of 2.5M acres is open to public.
It looks like they only take paypal and Venmo. If its online only and they don't take credit cards it is a scam. You can always charge back a credit card.