xiaobaitu Help: File Two I-485s simultaneously, OK?

Many thanks in advance.
My wife has filed I-485 for all of our family member after her PERM LC approval last year. We aleready did fingerprint. Her priority date is 8/2005.

My own I-140 through regular RIR has also been approved this Jan. My priority date is 9/2003.

Question:
1. Can I file another I-485 based on my own approved I140 since my priority date is much earlier?
2. Do I need to fill in the A# if my I-485 is fillable?
3. I am hired by a consulting company in INDIANA but I am actually working in NY. My I-140 was approved by Nebraska serivce center. Should I file my I-485 to Vermont or Nebraska?

Thanks again.