$2000 for amps and sub.......... what about the 2-way front stage ?

$2K including shipping over seas ????? Shipping amps and subs over seas is going to cost you some dough due to size and weight. But it's not impossible. I'd suggest getting into an efficient sub with not a huge motor structure. That way you can stay with a smaller amp........... and packaging that all up to ship won't cost you as much. Spend the dough on some excellent front 2-ways. Good four channel amp will be all you need..................