Do research on their website into the prices paid by journalists and customers mentioned in articles. They will charge you as much as they can get away with. Also, I'll second Dr. B: know EXACTLY what you want. Bring notes with all the details and structural elements you require. Also, try to get them to throw in a shirt or two if you aren't completely satisfied with the final price. I ordered 6 shirts from them and I'm very happy with them. Good construction, pattern matching, buttons, and collars. Again, I can't stress how important it is to tell them EXACTLY what you want. Depending on the material, I think you should be able to walk out of there with that suit for Â£200. They like to charge a premium for good fabrics. I'd come in at about Â£150 and take the back and forth from there. Let us know how it goes.