I am doing some research for my Dad, who has a vintage Kustom PA System. He is considering selling it and trying to find out if there is a market for it and what it might be worth. I had him look at the model numbers, the head is a Model K-300-5, serial #108007, and there are 2 speakers 2G+1HG(?) serial #'s 624870 and 624470. These speakers have the large horn and I believe (2) 15's. Everything works, my brother and I used this as our first PA system many moons ago when we were trying to be rock stars. All are covered in the black cushy vinyl, we hauled these around a lot so there are a few small tears here and there but nothing really bad. Any help would be appreciated, Thanks!