I have a huge mountain of used equipment I no longer need.
700+ Tranzeo TR-CPE200-x
200+ UBNT LS5
200+ Poynting 21dbi 5ghz compartment antennas WLAN-A0017
And all sorts of other misc WISP equipment.
If you have a non-profit project application/project, PM with some details and I will see if we can help.
If you need to support a Legacy system, name a price. There is enough gear here to build a large ISP for pennies on the dollar if you are ok with last generation's models.