Fuel tank remote mount rollover vent valve mounting bracket - Tanks, Inc. brand or similar

I have a GMC square body pickup truck with dual fuel tanks. The fuel vapor canister was removed at some point over the last 50 years. The vapor lines were simply cut short, but that means the fuel would spill if I overfill the tank or take a corner with too much gusto. In an accident, it becomes a real safety concern!

Purchased a pair of Tanks, Inc. remote rollover valves, but found they do not come with a mounting bracket. My design is similar to what one would do with a short section of angle iron and drill bits.

I printed it with 5 perimeters, 50% infill, and used PC-CF filament. The part may be exposed to higher temperatures, depending on where you decide to mount it.  I haven't settled on a specific mounting location yet for my square body, but it's a simple, laid-back design. The top of the bracket is wide enough that you could still use the factory original washer. My design thought, however, was to have the bracket material thickness be the same as the original washer (3mm), thus performing the same function.

Orientation: I would recommend printing with the fastener screw hole down on the bed. The large hole to pass the valve through bridged great for me - no supports needed in this orientation.

I designed this around an M6-sized fastener.