There is a shul across the stress from willshire grand hotel in west orange nj. if you pm me i will give you the name of person to talk to, if you will book 5 rooms they give you small conference room for free, and if you have more then 5 rooms she will book you the nice size conference room, and you can daven at chabad shul acroos the street. they are also very accomendating with the late shabbos check out.