Town Hall 7 Farming base?

hello everyone! It's me again, oh well, I'm not popular, you probably don't know me.
So I am kinda new to TH7 , in the first day i upgraded my spell factory, builded everything that I could ( expect teslas and barb king , because im poor ) and noticed that getting dark elixir isn't easy, in sub 200.
Yes, i'll go up later. When spell factory is done, I'll try to 100% some bases with dat new rage spell.
Anyways
When I find people with dark elixir ( very rare ) I lose them very very quickly, why? Because my dark elixir is outside.
Why? No, I'm not stupid. I just don't know which base to use, because there are always barb kings and teslas, that I don't have.
Have you ever had these problems? If yes, what did your base look like?
Post a picture below.
and no, don't say " I got a solution, BUILD THE TESLAS " xD

That's my base atm:

http://s14.directupload.net/images/u...p/di2abqmp.png

It's not a real farming base as the townhall is inside, but it can be moved outside easily. I don't have teslas either, but I don't seem to need them. If I get attacked, they hardly get ever into the core to my ressources. The only stuff they take is what is in the collectors and mines. And even if they can break the layer to elixir or gold, the dark elixir is another wall further.
But mostly I don't even get attacked because I'm recently upgrading very much, so my storages are mostly empty to a point at which most farmers don't see a point attacking me.