If you think this one is pricey check this one out.
I see one on KSL for sale used for $500
https://www.dxengineering.com/parts...MrJ3k4TYe31W6qrgyrFQt7IbUKjHCXTAaAsM9EALw_wcB
I see one on KSL for sale used for $500
https://www.dxengineering.com/parts...MrJ3k4TYe31W6qrgyrFQt7IbUKjHCXTAaAsM9EALw_wcB