Sorry if I'm late in this discussion, you might already be in bed if you have to wake up for MEPS at 0600. You can always talk to the Army career counselors at MEPS about 18X contract. They will have the same software as your recruiter for viewing "available" contracts, but they might put in effort and make a phone call for you to see if 18X contracts can be added to the system. I don't mean to speak out of line here, just adding to the discussion from my minute experiences thus far
Also, my Army recruiter took me to an SF recruiter presentation at Ft Lewis recently and the SF recruiter mentioned to all of us that he couldn't pull a single Ranger from the battalion even though over 60 Rangers applied for SFAS post-deployment because the Ranger Commander wouldn't approve of them going; however this is just one instance, and doesn't reflect all of the Ranger Commanders disdain for SF.