For the control levers you can probably get sheets of pre-printed letters to make your own, or have a decal /sign shop cut them from vinyl. I don’t know of a single gauge manufacturer or car, truck, or equipment manufacturer that supplies replacement gauge decals, so I’d say the odds of a Chinese company supplying them is something less than 0%.
I saw a set of universal control decals on a vintage tractor site that had over 50 different combos when I was looking for a set for my backhoe. When I went to find the link again all I was coming up with was http://www.hoyetractor.com/PROD/DECALS.htm which was a Yanmar sheet but if you search with google you should be able to find what you’re looking for. It is escaping me at the moment.