I agree with you that you do not need EIN - at least at this point.
You may apply for EIN any time in future - if you would need to have it.
Your SSN is not valid for employment - but because you are physically outside the US - you are not working in the US - and there is no violation.
Still - because you have SSN - it is a valid SSN - and it should be used as your tax ID.
Because you already have SSN - you may not apply for ITIN.
See here - http://www.irs.gov/Businesses/Small-Businesses-&-Self-Employed/Single-Member-Limited-Liability-Companies
An individual owner of a single-member LLC that operates a trade or business is subject to the tax on net earnings from self employment in the same manner as a sole proprietorship.
For federal income tax purposes, a single-member LLC classified as a disregarded entity generally must use the owner's social security number (SSN) or EIN for all information returns and reporting related to income tax. For example, if a disregarded entity LLC that is owned by an individual is required to provide a Form W-9, Request for Taxpayer Identification Number and Certification, the W-9 should provide the owner’s SSN or EIN, not the LLC’s EIN.
Specifically for your question about ITIN - see here - http://www.irs.gov/Individuals/Additional-ITIN-Information
Once you receive a SSN, you must use that number for tax purposes and discontinue using your ITIN. It is improper to use both the ITIN and the SSN assigned to the same person to file tax returns.