I've been in contact with Chuck from Bell's Bike Shop.
He's a cool guy, very patient and always answering my inquiries.
Bought some parts from camposlorca, they are a shop in malaga spain.
Quite surpising they shipment is very fast, shipped from Malaga on the 14th, arrived in Jakarta on the 17th.
But the shipping cost is killing me

dont take it wrong, it's very expensive to send stuff to Jakarta