CAD dump…
Panel mount loop key / xt90
loopkey mount template.3mf (15.6 KB)
loopkey fob.3mf (274.2 KB)
loopkey mount.3mf (208.7 KB)
flat panel mount loop key.step (339.6 KB)
flat panel mount loop key.f3d (834.4 KB)
Mach 1 Bullbar Mount
mach1 bullbar.step (197.9 KB)
mach1 bullbar mount.f3d (268.7 KB)
bullbarv2.3mf (74.3 KB)
Mach 1 Handle Mount
Mach1 handle mount.f3d (370.1 KB)
Mach1 handle mount.step (209.1 KB)
handlemountfinal.3mf (70.5 KB)
The bullbar uses an m5x12 mm button head screw to locate into the hanger, and little baby screws into the pipe handle
The rear handle mount uses m4x10 socket heads and the same teeny screws.
the pipe is PVC pressure pipe from Bunnings → https://www.bunnings.com.au/holman-15mm-x-1m-pvc-pressure-pipe-class-18_p4750046
If you gonna do this, sand the pipe really well with 400grit and use an oil based enamel spray paint.