You probably have enough cherries for multiple brewing projects. I've used 1-2 lbs of cherries per gallon of beer before with good success. In addition to what is mentioned above you could do a ~5-6% ABV saison with low hopping racked onto the cherries for 3-6 months, with or without Brett added depending on your preference. A cherry mead is another good use!
Cherries seem to be a good fruit to leave beer, mead, or cider on for extended aging.
EDIT: Given that you have Nottingham on hand, I'd say a cherry stout is your best bet, as some have suggested above!