I don't think he was saying he should use opiates during xanax withdrawal, but that he would consider cold turkeying opiates, but not xanax.
xanax withdrawal is no joke, man. You definitely need some kind of medical help, because at your dose/length of use it is going to be fucking hell. I had to stop taking xanax a few years ago at ~4mg a day for about a year, and honestly felt like I was on the verge of a seizure for a few weeks.. My friend had to stop at the same time as me, with a similar habit, and DID end up having a seizure.. I have seen people in rehab have seizures as well. No fun.
Please call your doctor/pharmacy and see if they can help you out. Stress the fact that this is serious, and you are at risk of a seizure. Any good doctor should understand. I have run out of klonopin early sometimes, and the doctor helped me out by calling in an early refill.
If all else fails, go to teh ER and explain your situation. They cannot deny you care, this is a legitimate medical emergency.