Yeah, I think a custom one from a perspex manufacturer may be the go. I know there's on in Sunshine here in Vic, but I was just not sure when I'd get the time to go there to get it done. I should do it though as I need a second one made for something else.
The Sard setup is really nice, but I already have a surge tank, so I want to go with that. I just need to section it off from the cabin for CAMS approval.
I might shoot Paul a PM too, thanks Richard.