Thanks for that Grant, it clears up some questions I had about why the engine was so much further over to the right side than the Queen, and why I couldn't find attachment points for the various covers the Queen had and the Model 65 didn't. However I'm still wondering about the Honda engine. It is said to be a GX160, but Honda didn't make the GX series (pushrod overhead valve) until the 1980s AFAIK.

Aside from not having the cone clutches, the one Michael is considering has a lot more blades in the reel than the one in your pictures. Was this an original equipment option, or has the blade been switched for a finer-grass type?