TBH €700 wouldn't be that much, thinking through. If she had to travel and if she's in her own league then understandable.
This was the girl my family saw at a wedding although our wedding guests were a bit quieter than these guests. They loved it anyway.
Eimear or (Emer?) Bradley, she's from Belfast and does loads of the weddings near Cavan and in the north. Did Lord of the Dance too. There's a great video on youtube of her playing at the meal in Trim Castle Hotel.
Another great band are The She's.