Just for what it's worth, "buyer beware". The recommended vendor was DEAN. There are indeed a whole slew of telecom equipment junkyards out there selling "scrap". While I understand your need is for a benign piece of door hardware that anyone should be able to provide, be careful about establishing a relationship for subsequent purchases. I've been using the folks at DEAN for well over 15 years. That's not to suggest there aren't many other reputable resellers, just be careful. Not everyone you find on the Internet are square shooters.
Original MUG/NAMU Charter Member