[David Hodgson]

Hi Dave, chances are it is originally a W.A body which narrows the guess to 4 or possibly a DAX, though most of those were imported as kits with chassis. They had a raked, moulded in, dash panel and a wider flare on the trailing edge of the rear wheel arch

RMC will have a small radius edge, maybe 3/4", rolling 180 degrees, on the edges of the body leading into the cockpit front and rear, ie above dash board and rear cowl, no dash panel, usually a moulded bonnet scoop and a smaller flare on the rear wheel arch.

G-Force will have a larger radius maybe 1" or 1-1/4" on the cockpit leading edges, and a wider flare on the trailing edge of the rear wheel arch, best compared from rear, same as for DAX, but no moulded dash panel, and usually a moulded bonnet scoop.

GT Sports Cars (WA) was a guy who apparently worked for G-Force and went out on his own, didn't seem to last long, I haven't seen his body in the flesh but have some pics at home, bit hard to see detail though in full body shots.

Auto Styling were available early 80's, and a lot were lurking around unfinished or not even started, as generally no chassis were supplied as the manufacturer suggested you cut up a Crown or whatever you can get that is close then fit an MGB w/screen. I had a close call with these guys in '82, just didn't sound right to me. Not a good body but if your handy you'll make something of it. An Auto Styling car took out the show and shine at the very first CCC Nationals held at Mildura in '94. From memory the cockpit leading edges were just squared off into the cockpit area.

Best to post some pics, particularly of these areas.