K&D...Wilmington is not a great place for sailing but you can do some local weekend stuff around Carolina Beach and Southport where you can jump out into the ocean on nice days. You should be able to find affordable live aboard space but I would suggest you do not approach it that way. Most marinas will give an automatic NO to anyone looking for a live-aboard slip. Your best be will be to:
1. Prowl the docks and see if there is evidence of liveaboards.
2. Search for dockage saying you are moving to the area for a job and need a permanent slip. You will only be living aboard while you transition and make sure the job works out.
3. Once in the slip at a marina that you know has liveaboards...
be a good citizen for a month or two and then tell the dockmaster that you've been thinking about it and have decided you would like to continue living aboad if it is OK with him and are there any additional fees for live-aboard status.
I'm north of your area...but while it does get cold in the winters it is nothing like NE and many people do it here.
Get yourself one of these...it will be handy!
www.NCwaterways.com