[4Sale] Rotary tumblers

I am shrinking my production and have a huge rotary tumbler that is
taking up space and not being used. It is a 2 speed base with three
1.5 gallon barrels 36 inches x 13 inches x 7.5 inches. The roller
length is 22" New at rio grande it is $ 830. their price for Barrels
$ 113.00 each! I will sell the whole works with lots of plastic and
ceramic media for only $ 350.00. We are in western Massachusetts.
Does anyone have any idea how to sell a serious piece of equipment
like this?