I know that internet sellers like Emotiva, HSU, SVS, Rythmik etc ship overseas (i think..?) so i wouldnt see getting on from them being an issue. However the price on the shipment may not be worth it. I dont have experience with this so maybe someone else can chime in with info. But i would at least call one of these sub manufacturers & ask. I have dealt with both Emotiva & HSU, both companies get an A+ from me when it comes to customer service. So im sure they could work something out with you.
As far as helpong you choose a sub from one of the mentioned brands id have to say we need more info to help.
1. List these in the order of what will be used most. Movies, Music, Tv
2. What is the size of the room? (W x H x L)
3. Is it a closed room or open to other areas? If open please list size of attached rooms.
4. Budget?
With the answer to these we can help much more

thanks!!