I've been through this situation myself. Outside of the scope of the emotional trauma of divorce, I can suggest a couple of things to consider.
Divorce is a business transaction - a division of assets and debts. In order for this to work out fairly, you must retain an experienced divorce attorney. It may cost a couple thousand dollars, but it's worth it.
If he is in 'good standing' with the congregation, you have leverage. Inform your husband that you have written a (registered) letter to the elders informing them of his abandonment of you as his wife. He has failed in his scriptural obligation to support you physically, emotionally and spiritually. You can add accusations of verbal or physical abuse and infidelity. Let it all hang out. The elders with be meeting with him a.s.a.p.
Do not communicate with your husband. Refer him to your divorce attorney. Don't talk with the elders over the phone - conversations will be recorded and shared with your husband, his family, etc. Document EVERYTHING, record phone calls, keep notes - this will be important information for your lawyer to have.
If you remain in a amicable seperation, the elders will do nothing to him. Period. They don't want to get mixed up in marital situation that are heading to the court room.
You must play hardball and take control of your future. First thing to do - consult with an attorney.