The polytunnel goes up

In principle I'm not a great fan of polytunnels.  They are quite invasive and have a lot of plastic and metal in them...But, with this kind of weather and to be able grow a lot of vegetables most of the year, a polytunnel is a wonderful invention.  Finding the right weather to put it up has eluded us up till now.  The last week in March saw temperatures soar and Adam available to manage and do most of the work so we took advantage and pulled out all the stops to get it there.  It is not quite finished, but we are very happy with it.  It is huge and I worry about many things, like, will it stand up in a gale?  Will I be able to manage all the work inside it?  Will I be able to get the sprinkler system going eventually?  I've never had one before, so lots to learn.  It will have green netting and vents at the bottom for ventilation when it gets hot (it sometimes does!)  I will of course have to do the whole interior layout and this will take some time.  If you scroll down to the bottom of this page you will see the tunnel as it is just now, without the vents or the sliding doors.