Alibaba is set up for bulk orders. Aliexpress is the single item dealio. If it ain't there or the guy doesn't want to deal with a single order deals over....
There's alotta threads on making them here. But honestly dude. Recoil starters are just an over complication. I started my Moby for years with just a strap of leather wrapped around the flywheel.
I certainly understand it when your doing the tuning, but once starting is dialed in a 3ft strip of leather that narrows from an inch to a half an inch worked great for me. I even got fancy and added a wooden dowel after a year or two...
I have to admit that the kick-starts are super sweet when working right.