We have been there a couple of times since moving to Scotland. ELYC is a great little club with a very capable team.
There is a commercial campsite and caravan/motorhome place about 10 minutes walk from the club which we have used and is pretty good with decent facilities.
As GCS mentions it is a golf resort and so there is lots of decent accommodation of all types. It does get pretty booked up so (just like in SW England) it is somewhere to book early.
Google says 5 1/2 hours from Birmingham driving normally. That said, it is important to remember that on a Friday or Saturday in August you are much less likely to sit for hours in traffic on the A1 heading for Scotland than you are on the M5 or any of the other roads into Dorset, Devon or Cornwall.
Hope this helps. It might well be my first Merlin Champs since my first in 2006....
Antony