A traditional bassboat is pretty hard to purchase and well equip for $15,000… I would recommend going to an aluminum boat in that price range. (you would be able to offer a nicer package.)
An Alumacraft 165 cs magnum with a 75 hp motor on it is a nice all around boat package for someone who doesn’t have one, or has an older one, and can be used for bass or walleye (might attract some anglers from the walleye world as well.) It was the boat I had before my purple Stroker, and the One that Topwater runs today. I had a Merc on Mine, Brian, has a Honda on his. I had a 24v 56 lb thrust troller, Lowrance Glomal map 2000 with cartrige reader (for detail on the river) and a lowrance x65 front graph. Very well equipped by anyones standards. I believe I paid around $13,500 for mine. Many other brands and types that could be put together into an attractive package. This is just the one that I am familiar with.