Used Outboard Motor Prices Whats A Reasonable Price To Ask For 89 Mariner 25hp And 73 Evinrude 6hp Outboard Motors?

Whats a reasonable price to ask for 89 Mariner 25hp and 73 Evinrude 6hp outboard motors? - used outboard motor prices

I have a 1989 and a 1973 Mariner 25 hp Evinrude outboard motor 6hp. They were no longer used for years, but they are in operation and excellent physical condition. I wonder what a fair price to sell two of them.