Electric propulsion of cars have made electric motors and generators very light,efficient and reliable in no time.
Batteries have not improved orders of magnitude since WW1 submarines.
Let try if a single prop/electric motor driven by two single cylinder enginerators can be as reliable / low...
Two stroke engines without valves are dying fast.
Two strokes with exhaust valves sell very well for ships.
It is great fun for an old man to see if exhaust-valved two strokes can be useful in aircrafts.
I made a PPL forty years ago and cancelled it when money went low 36 years ago.