I got the engine reassembled today, looking good!
Managed to slice my finger open with a chisel while scraping old gaskets off. Ooops.
Done the valve clearances and adjusted the clutch (I think?) so will put it back in the frame tomorrow.
Hopefully it will go. It seems to go through the gears properly.
The kick starter spindle from Thailand wasn’t machined correctly so I had to grind a bit out of the shoulder so it didn’t foul on one of the gears.
I’ve lost the kick starter somewhere in the garage. I remember putting it somewhere unusual so tomorrow I will have to have a proper look for it.