I did some looking for you…
At first glance it does seem that your budget is a tad on the low end for ALL the amenities that you are hoping for IN THE AREA you are wishing to be in (Manteo to Southern Shores)
Doesn’t mean it isn’t possible, just will require some dedicated time searching.
I am a big fan of FLIPKEY which is a company affiliated with TripAdvisor (part of the Expedia Family of Companies)
Mr TTR and I have used FLIPKEY services before on a holiday (Finger Lakes area of NY State), and we were extremely pleased.
FlipKey = http://www.flipkey.com
The one thing these guys give you over looking privately elsewhere on-line is the properties are GUARANTEED to be as they are presented… so what you see is what you get (at least photo wise).
AND you book / pay thru a secure website / intermediary … so your money isn’t going to some unknown Joe who may or maynot actually have a property to rent (Rental Scams are HUGE on the internet)
There is usually an Admin Fee imposed as well (somewhere around $ 100) and that covers things like Linen Rentals & Housekeeping… some properties will charge you less on the Admin Fee if you bring your own Linens & Towels.
As I said, I did a quick browse around… was able to find properties in the base rate of $ 600 to just over $ 800 for the week you are considering.
BUT not all of them are single cottages… some of them are doubles / duplexes… or condos.
OR they are not right on the Beach, but across a street… having been to this part of the country that isn’t always a huge deal, as sometimes “the streets” aren’t main roads, and therefore not terribly busy.
You could always take a look at GOOGLE MAPS or BING MAPS if you want a better view of the lay of the land once you find something that interests you (I’d look at both… for comparisson sake, as these 2 mapping sites tend to be a little different from one another. Especially like Bird’s Eye View on Bing, and Street View on Google).
Hope this helps,
PS… When I did the Search on FLIPKEY, I punched in…
Manteo, NC -$ 600 to $ 800 per week – and September 22 to 29, 2013
Then I looked at the Results Map… so I could see where the markers were for each property. From there you can easily move your cursor up and down the map to see further north, or zoom in or out etc.