I have had suits made in Hong Kong from http://www.hongkonggrand.com/. The fitter travels the east and west coast monthly. There is a schedule on the website. So you can come to New York and get fitted. I have gone to this Bangkok tailor for years. Raja's Fashions, The big, comfortable shop on Soi 4 has plenty of material to choose from and Raja's is known for excellent fittings and finish work.

Address: 1/6 Sukhumvit Soi 4
Tel.: +66 2253 8389
Hours: 10 a.m. to 8 p.m. Monday through Saturday

Both tailors do excellent work, and a quick turnaround time.