Based on Gary's years of experience if Gary says he can, then I believe he can.

Alan.
Ah, yes, I wasn't saying he couldn't, I just said that
I couldn't.
I'll be very interested in how it's done. As you can see from the CAD model images I posted, the bracketry becomes very involved if you want to properly resolve the clusters. You can always just bracket one side of each tube of course, if you want to build a new airframe every couple of years ...
Well yes using square tubes is making your life hell on brackets - plus the tubes are probably way heavier than they need be for the loads adding weight.
No, I chose the square tubes for the design I was working on because they were more closely suited for the loads they would carry, than available round tubes would have been. The bracketry was made easier rather than harder, and the flat faces offered the benefit of two rows of rivets rather than one, so the gussets could be smaller and lighter than otherwise. I built a Heath Bullet years ago (early 1980s) using gussets and round tube and it worked OK but the square tube was a much better option this time.
One way of cutting both the weight and the brackets on a truss frame in rivited ali was/is done on the texas parasol
Yes, but the Parasol is made from angle rather than tube and personally I wouldn't fabric cover an angle airframe. My Macro series in 1983-4 was built using light commercial grade trim angle and covered in 0.016" & 0.025" alclad sheet rather than fabric. They were a very light airframe (empty weight incl engine was around 80kg, well under the 115kg we were allowed back then, but they didn't have enough wing area to be
quite legal...) and flew with 18hp direct drive at 75kts. Quick to build too, I built 7 of them in about 3 months each.
I've often imagined that Gary might build kits something like them, the method is fairly similar to his other kits.
Macro -
