Ha! Thanks for that, Jim - yes I did survive!
You guys will be mortified at my 300kg cart, THREE cameras, and not to mention the mattresses we ended up with (http://www.flickr.com/photos/alastairhumphreys/8380797691/in/set-72157632490844529).
But it was a wonderful adventure. And thank you to everyone here, as always, for your knowledge and advice.