The TW kickstarter shaft assembly does include the washers # 7 and # 9. These are a flat washer and a washer with two ears that engage with item # 4. These are illustrated in the picture below.
Since these washers, item # 7 and # 9, are mounted outboard of the circlip, they are free to float on the shaft in whatever space there is between the circlip and the inside of the right side cover. It has never been clear to me what purpose these two washers serve. I have no doubt that the kickstarter would work fine without these parts but the Yamaha engineers must have put these in there for some reason, and the Zongshen engineers did not include them for some reason - but unfortunately, I don't know what these reasons are.
p.s. It would be a nice gesture if you could include the little plastic plug, item # 20, that serves to keep mud out of the splines on the crank boss. It shouldn't add much cost.