Since you are just north of Nashville, you likely need to get them winterized soon.

Given what you describe, you may have a few thousand dollars' worth of goods.
Maybe $10,000 if you are not in a hurry.
Maybe $15,000 on the best day for the perfect buyer.
Honestly, I would put them up on Facebook Marketplace, and say $1000 or best offer for each of them.
And take whatever anyone shows up with cash to take.
It's going to cost you more than you think to have that stuff removed that doesn't sell.