The UC is a taildragger and sits at a steep angle. Something which allows a safe, firm grip while settling in (or attempting to get out) would be nice. Not clear what aircraft this is. He has two rearview mirrors ala. WWII fighters. The video showed a normal landing at airport.
Look closely ... the righthand sliding window is closed. This would be a nice window for the Ercoupe ... open and close while in flight!
At the top-center-right, you can see the sliding window. It slides on rails in the windshield hoop and turtle-deck hoop. Can be open and closed in flight! Won't give the headroom like the UltraCruiser canopy. But cheap and light weight.