#1 seems like the only option which would not cost obscene amounts of money. Wall hung installations are very pricey.
You are creating a room which many future buyers of your condo would balk at. You would put the toilet in a "non-private" area, meaning for privacy you would have to lock out access to the sink and that large room ( closet? ),not to mention giving them a smaller vanity when instead you could possibly put in a double sink upgrade.