I ask purely speculatively, since a) we can't afford long haul at the moment and b) the very idea of DS2 on a long plane flight gives me more hives than the poison ivy waiting for me at the US campsite. 
But do people do this? Or is it just more sensible to hire out a tent at a campsite in America? I have a Bell - can't see us carting that to America or Canada, but it's nice to dream...