Bespoke Map

I am looking for a designer to create a custom illustrated map similar to the examples attached focusing on the DA14 and DA15 post codes in the Uk.

We would want the key roads, landmarks, train stations to appear on the maps and in our company colours.

We want to put it on the wall, the size is roughly 3m by 2.5m. I only require the design in a number of formats and we will have it printed separately