Oh believe me I tried.
The only map I could find of the complete WC universe is the one where you see the Confed and Kilrathi sectors when everything is a stalemate. The one Loaf made and the one you get with Prophecy I guess which are almost exactly the same.
I'm more interested in the system distribution during other times than shown on those maps like at the beginning of the war, the Vega campaign, after the Kilrathi war. Though I guess there are not many sources that would help in that respect.