Found this establishment on Google and all the reviews spoke for themselves! I went there on the morning of Good Friday, told the owner that I would be leaving on Sunday morning. 1 fitting later the same day at 5pm and it was a done deal. Came to pick my suit on Easter Sunday and it was a perfect fit. Thank you What a pleasant experience!
Now that my measurements are on record, I can order future suits even whilst being out of Hanoi!.