I too remember the amazing speed of production of clothing items. The tailor in Tengah Village ran up all my necessary uniform items during my week's "acclimatisation" leave on arrival: shirts/shorts, bush jacket/slacks and a rather nice white Mess Dress jacket and 'lightweight' blue trousers.
Subsequent orders included raw silk civvy shirts, and 'dress' civvy shorts and slacks. The prices were staggeringly low, even though he had a captive audience and was, IIRC, the only tailor in the village.
For other more complex items (DJ, suit etc.] I used Wai Cheong in North Bridge Road (the DJ survives to this day, albeit a bit snug!]. And from a cobbler down near Alexandra BMH I purchased a made-to-measure pair of full-length Dress Boots, in beautiful German chrome leather that bulled up like glass* ... and they're still going strong, 50 years on! IIRC the boots cost £7