Just to be on the safe side I'd but the BPAV in a parent folder with a unique name and zip that.
I can see a bit of a mess happening if you unzip multiple BPAV folders all named BPAV.zip
You're going to need some heavy duty bandwidth speeds to move these files around.
You might need to check both the sender and receiver speed to whatever distant server to see what speed you can expect. Your local speed may even be very fast but it's the speed to the area you're sending to that's important. http://www.speedtest.net/index.php