As far as I know, the Aerobat IS made to do ... well...aerobatics!

And heck, we've all see the DC-8 do a barrel roll down very low in the desert. It looks like that's quite the maneuverable little plane, so I don't see a barrel roll as being out of it's capabilities at all. even will the big "tundra tires" on it.
Heck, when I was learning to fly gliders long and long ago I learned a lot of aerobatics. I learned them, of all things, from a couple hawks that lived in the cliffs near Calistoga, where the gliderport was. They would come out and fly formation on me for a while, looking me over while I was soaring the ridge lift. Then, when they were sure I was watching them, one would take off and do a roll, or loop, or whatever, and wait for me to follow them through it. I learned a LOT from that little game with them. One would do something, the other stayed on me, like it was welded to my plane. Eventually, we would get to play chase me, where I would chase one as long as I could. When they got bored or tired, though, they cheated. They just pulled up short and landed on the cliff face. Not exactly in my envelope!

Has a blast that summer...
Thanks for a near pic and story, David. Very enjoyable indeed.
Pat☺