For sale option on available puzzles

Sometimes people want to list for sale a large number of puzzles for sale without creating auction listings. This would be a nice way to show puzzles people have marked as "for sale" and a price they requested. Probably like puzzleparadise the site wouldn't handle the transaction, but just linking the communication. Maybe also I can put tracking info in there after also. For example: next to the puzzles on my "Available" page is a clear price, and a "buy it now" or "make an offer" button (maybe make an offer next to puzzles in my public page for things that aren't available for sale also), and if I choose to accept the offer through the site then maybe I would pay a 1% fee for your site bringing me business and making the sale process easier by not having to use discord to communicate and share shipping info and tracking number. As soon as I accept the offer on the site, the puzzle automatically moves out of the "available" page into "sold".