WTB Top mount poling platform

Looking for a top (gunnel) mount poling platform to replace my transom mount platform with. Let me know if anyone's got one laying around in the central FL area (Tampa/Orlando/Ft Myers/possible East Coast).

Legs need to be at least about 44" wide. I can get one made for $600 but figured I would check on here on the off chance I could pick up a used one for less.

Thanks in advance.