How much would YOU offer?

I wanted to get some opinions on a used truck camper purchase. I will post a couple scenarios and I'd like to get some feedback on what you would offer the seller, and even how you would go about it if you were going to make the purchase. All of these campers are priced WAY above NADA, which is why I ask the question. I am not out to insult sellers, but I'm also not interested in grossly overpaying for a camper.

Scenario 1

Year: 2019
Low retail: $26,450
Average retail: $31,850
Seller's asking price: $35,000

Scenario 2

Year: 2016
Low retail: $20,650
Average retail: $24,850
Seller's asking price: $27,000

I will add that both campers are clean, and so condition is not an issue. Thanks for your input!