Wouldn't the market be limited. I can understand developing this for the G4/LM as there are still plenty out there inv everyday use and this provides (or attempts to) a way to make the two stroke Victas a more viable preposition to keep on the road instead of giving up on them due to a needle.
Doing one for a G3 is getting in boutique territory.

Ahh, if only victa had kept producing the thumblatch catcher series, they would be in better shape today!