1st, know your size , what is your size in US and EU size , EU38? EU50?
want it cheap & good ? Go to Bundle stores like JBR Bundle, go to the largest branch u can find, there is usually a few racks of used but CLEANED jacket or whole suits there, the selection is great if you are normal asian size. the suits mostly come from Japan or Korea ,some custom measured , going for RM15 to RM35.
True story, last year november got annual dinner. 3 month before already inform need jacket. i go Ebay, bought a used Dolce Gabbana Martini Suit for 1k and a Armani one also for 1k , i ended up going to the annual dinner in a 10 ringgit jacket i found in a bundle store here.
Tailored in Bali.