Reef Octopus Octo Pulse 4 Outside Magnet Mount

[Maui The God]

Hello everyone, Im on the hunt for an Octo Pulse 4 outside magnet. i cant find one anywhere. im hoping someone out there might have a spare or one from a pump not working that theyd be willing to part with. i know i can get the extra strong magnet but im really not trying to drop $90 on it.

if i have no luck there does anyone know of alternatives for that magnet? i have 1/2 inch glass. i know the octo pulse 2 magnet says it can support up to 1/2 ich but im worried that its really pushing it.