I am 98% certain that you can't find any drum extension arm here in Doha. I had to bring mine from Budapest or you can ask your parents if you can use their credit card to order it online. I'm afraid its the only way. As for cymbals cleaner, check Continental music shop in Souq near Sofitel. Just talk to the owner, I think his name is Jackson, not really sure. Have you tried looking at 51 East- Instrument section? Good luck!