This is a special situation where I think your should call some area hotels/motels, ask to speak to a manager, and explain exactly why you will be in their area and how may be in attendance. (This is not not your ordinary vacation.) Ask if they offer special bereavement rates for relatives celebrating the life of a loved one, in a place he loved more than any other.
I would also call Drunkin' Jack and tell them the same thing. Ask to speak to a manager and tell him/her you would like to make reservations due to a dying man's request, and you want to implimate his wishes.
Now go to my rental web page:
http://www.funbeaches.com/condos_rentals.htmlScroll down to the right hand column that lists accommodations. It says:
Best condo rentals in Surfside Beach and Garden City Beach (the two "Family" Beaches,) Pawleys Island, Murrells Inlet and Litchfield
Start calling for the best rate you can find.
I don't know if you are interested in in a cremation here, but if so I have a friend who does this, and I could contact him if you are interested. He takes his boat out to the required-by-law distance from shore and allows time for a ceremony. Here is the cremation on his boat for a friend of mine. He charges around $250.
http://www.funbeaches.com/joe-memorial/ Hope this helps!