I found this set of acoustic drums online.
It's $500++, which is indeed cheap but I'm not sure about the quality.
The shop's located at Tanjong Katong Complex.
Click here!

And for if you are living in a HDB flat, like most people do, get yourself a Pearl Rythm Traveller!
You can use the plastic cymbals, which is actually for practice.
The real cymbals are pretty great for a gig.
I myself want to get an electric drumset but it's costly.
So yea, I'll stick to this Pearl!

Oh, if you're wondering where to get it, it's at Swee Lee.