Where to get amplifier case with pre-drilled holes?

[Masterman 0]

I am planning to get one, something like this:

 

http://www.thlaudio.com/indexE.htm

 

Does anyone know where I can get it in Singapore at a reasonable (interpret reasonable as you like) price?

[heady 0]

Wells Audio at Burlington Square ground level. Or Koba Electronics at Peoples Park Complex, level 3.