Just wanted to update..
The original place I was going to take him on Monday isn't going to work out. Instead I am sending him to my mom's house, which is in another state. He is ready to go and I know he will be safe there. My son is very close to my mom and stepdad and is looking forward to seeing them. His dad lives nearby too, so this could be a good thing.
I am still working on getting him into a long term program but right now I need to get him out of town ASAP.
I found a great PDF link about the stages of Meth withdrawal but my post count isn't high enough to share it
Thank you again for all of the support.