[USR-TC] Used TC

Hi, I need some used Total Control chasis which supports 60 Analog telephone lines. Please let me know if someone wanna sell or can recommend me any site to buy used TCS. If anyone interested in selling please let me know the complete information of different cards installed like NMS, Netserver, Anolog modems etc. If someone interested in selling Total Control chasis for PRI (E1) , please let me know the pricing. I need all the cards NMS, Netserver PRI, Dual PRI etc. Thanx, Nauman.