Do I really need one of those TAX IDS: SSN, ITIN, EIN?
It's hard to know what Apple would do if you declined to offer those numbers. You could reach out to their support or just go ahead and register with the US government for an EIN if you choose to register as a foreign company or an ITIN if you wish to register as a foreign individual.

Please don't take advice over the internet for tax / legal issues, though. You'll really want to get someone that knows about the law and/or finance to help you choose and fill out these legally binding forms.