It has taken us several weeks, due to weather, the fact we have full time jobs, missing parts etc, but we finished it yesterday! We covered it despite there being winds between 12-20 mph (which is a strict no-no in any polytunnel book!), as we'd seen the forecasts for the next few weeks and that seemed the least wind we could hope for!

It's 10ft wide by 30ft long, and has timber base rails instead of being trenched.
If you can spot by the double doors, a huge puddle of water.... just as we were finishing the last end, we had 30 minutes of torrential rain, which drenched us and the dogs, and we spent 30 minutes in the tunnel making a makeshift poncho and hat for me out of cut-offs of polythene. There will be no pictures of this.
I haven't put anything in it yet, as we've got irrigation systems and groundcover to put in, although I'll be moving stuff in this week.