Town Hall 7 Core

Hi, I'm trying to design a TH7 base with the Town Hall in the center but having trouble figuring out what core to use, could anyone give me some suggestions? Thanks

My favorite core was like this:

1) Town Hall on center of field

2) Clan Castle to the left but corners touching

3) Dark Elixir to right of Clan Castle

4) Barbarian King to the right of Dark Elixir

5) Surrounded edge tight by walls

It works well and uses a small amount
of walls.

4 Buildings:
T- Townhall
C- Clan Castle
A- air defense
B- Barbarian King
DIAGRAM:
C-A
B-T

This core will be 7x7