If you haven't already, this is a question you should pose in a new post in the DIY section, you are bound to get more responses. Can you get an amplifier locally? Do you have the tools and skills to cut wood and make the cabinet? or, can you have that done inexpensively where you are at? If the answers are yes, then it may be worth your while to order a decent driver and put something together yourself. It won't be cheap, but it can be a better value than ordering a whole sub from the US.