I've bought suits from Rajas on Soi 4 as well, and can vouch for the quality. If you are particular about the styling, stitching, interior fabrics, buttonholes, etc, tell them, and they will accomodate your needs - at least they have for me! You should be able to get it for less than B14,000. But, beware the shops that sell a suit, 2 pants, 4 shirts, etc for $100 US - those will be shit!