Brazilian culture... or just Cachaça! (Brussels)

Oi,

on Friday I will prepare a little apero and I'm wondering where I could easilly get some Cachaça. I warn you not the bad kind, I want luxury to do some mind blowing Caipirinha. I have the limão, I have the pilão and a ton of ice (no refined sugar cane though :( so now all I need ... 51 or cheaper ;)

I have seen some bottles close to Gare du Midi but at close to 20eur that looked like a total rip off!

Any other suggestion? If it's just the normal price then I would happily get it there (even though it's a bit far, something closer to Schuman would be better for me).

Tô vazando!
Fabien