ISO float switch bracket for plastic rim

[Detour]

I want to mount a float switch to the interior of my overflow box (internal) in my DT as an emergency shut off for my return pump (no emergency drain option). Was considering using something like the pictured. Anyone have these available?

Looks like the print file might be available here - https://www.thingiverse.com/thing:3932450

 

[tikalize]

I dont know if this would work for you but its
nice for the price and not flimsy..

 

[Clear Choice Aquatics]

Pm'ed