I had ordered a cheap variator (with rollers) for a scooter and it had arrived, but it is (to) small in diameter. It is just 88mm (3,5"). It is lightweight. And it is for a 15mm belt. But it is nice to see how it works, even though I will not use it.
Meanwhile I came across this old (1958) video about Dutch Daf car, with variomatic drive system at 0:28 and a big 600CC engine...:
I also found this:
Doppler ER3, it's an aftermarket (100mm) vario for a Peugeot 103 moped.
For 2 stroke use... But I like the way it is build/design. Easy to tweak, by adding weights to the arms/levers.