Alternatively, could one of these nuisance long shaft PTs be adapted to fit a Masport, Rover it any other make? NormK didn't you say before that the main obstacle to fitting a regular PT to another brand was the shaft is too short?
This might be an opportunity to be able to fit this engine into a better quality base with a dead four stroke.

I saw this Razor in the Powerhouse Museum collections and it appears to be an alloy base. Does this take the longer shaft PT?

https://collection.maas.museum/object/349067

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