Have you considered something like this Burbs ?
One of the guys, VFRDude ? from a few years back. He rode his wife’s Yamaha 3 wheeler to one of Beamer’s care home visits. (I might be able to find a pic of it in the gallery threads) He loved it ! Said once you’d got your head around it, it was great, super stable etc
Berniebloke was his name
I was confusing him with ZZRDude.
Oops & sorry to both