Found this Morgan 3 Wheeler on vectorsfile.com.
https://vectorsfile.com/laser-cut-wooden-morgan-3-wheel-car-puzzle-kit-dxf-file/
Design was very incomplete and somebody had been fiddlling with the scaling on several parts.
In short it was a mess.
Fixed the scaling and using some imagination and rebuilt / redesigned the missing parts.
Finally got a finished model.
Any questions -> you can contact me here