Hello and welcome.
You havent told us whether you are a business or home use user.
If a business, your coffee supplier should have already been able to help you with something of an equivalent or quite usable nature in the meantime. How many kilos do you do per day....in how many hours?
Have you tried calling the importer direct about the parts? Failing that have you called someone like coffee parts/.
And lastly if your grinder really is not worth repairing through spare parts availability or whatever (and I find that hard to believe) there are other more commonly available grinders than the brand mentioned that should be instantly available. And the model type will depend on your kilos turnover as I mentioned above.
If you are a home use operator......why spend dollars for anything over and above a good mini commercial grinder such as M4, MM or K3, and anything over and above that is subject only to what you want (rather than what you need).
Hope that helps.