I work in the marine industry here in Western Australia, so to get most aluminium parts is easy, most of it is cut from scrap.

I cut a flange to suit the G90, bent a peice of ø19.05 aluminium tube to a 45˚, crimped one end to fit the flange and got the boys to weld the two together.

I then drilled and tapped the flange to allow me to use 2 x m4 cap screws. and spent the rest of the week polishing it.


Like so.