Hatteras did, and still does, make many different length and styles of yachts. All are known for their robust fiberglass construction which makes them ride proud and not lurch. A hatteras lady is a eloquent lady...but not maintence intensive. Paint for looks, not for protection.
You will find that many different models will meet your needs and desires, but one certain length and year may be the perfect fit (depending on budget). It took looking at many boats for me to settle on my true needs and wants lists. Bigger is not always better, even if you can afford the purchase price. More now means more later when trying to clean and repair.
The various molds hatteras used were of the finest quality and surely there is overlap between the lengths. The galley's are going to be similar, so cooking on the boats shouldn't differ much.