Travelin _man
HEY HEY HOCKEYTOWN!!
I used to tow with a focus and it wasn't terrible and still got decent gas milage yanking my boat around. I can't say for certain that the towing was the root cause, but the rear struts and transmission were toast after 5 years.
Have you considered a small utility trailer to hail a large ground tent and cots? It'd be a lot lighter than a pop up and easier on the Focus. I bet you could get a fully loaded utility trailer under 500lbs if you pack well.
That's actually not a bad idea.