I have a unit that might suit your needs in Kitty Hawk, NC at the Sea Scape Beach and Golf Villas. I have a 2 bedroom lockoff unit that is currently listed on craigslist at:
https://outerbanks.craigslist.org/vac/5152485685.html
I am willing to rent the 1 bedroom with queen bed, murphy bed and sectional sofa, full bath and full kitchen for $700 for the week Aug 9-16. There is a maximum of 4 persons. If you need the entire 2 bedroom lockoff which will include the additional connecting 1 bedroom with 2 twin beds, additional small sofa, additional dinette, and additional kitchenette, the total cost for both units will be $895 for the week.
The Sea Scape resort is a great place for kids because you have all the amenities available on the resort or within a short distance away. At Seascape there are 2 outdoor pools, 1 indoor pool, a recreation center, tennis courts, and daily social activities for both kids and adults.