Thanks everyone for the advise. If she manages to hatch the eggs then I'm definitely going to put her and the chicks in a broody coop but I think I will leave her for the time being. The eggs arnt valuable particularly, the chicks will go in the freezer when old enough and I'm on my own and can't lift my broody coop that far, good idea to plonk it on top of her though.
Fingers crossed everything goes ok for her