Help! 1966 Cherokee 180-c battery box

[malanr]

Just went into first annual on the new to me aircraft and got a surprise. Battery box and vent tube are done. 6 inch hole in floor of box where vent used to be. Thankfully, only th box, vent and avionics tray are toast and not the belly skins. I am looking to find a good used one that won't break the bank. Anyone got a good used one available?

Thanks!