Here's a radical idea. Why not use it to power a lawn mower instead?
Nah, anyone could do that!
Here's another very well executed 'classic Victa furniture' project;
https://www.outdoorking-forum.com.au/forum/u.../all/My_Victa_18_Special_Coffee_Tab.html There are some modern 4 strokes that should be used as a boat anchor.
Plenty of older ones in that class, too - those that have survived, anyway! Most of the vertical shaft mower engines made by James N. Kirby & Co have long since gone to scrap...
It's the two-strokes that have kept on going, albeit some of them are like unto the legendary 'grandad's axe'.