(oops, the Highlander one is 5cm short in the critical dimension)
(ooh, they could be handy!)
Not so long. From totally flatted and dismantled, there's a bit of faff to put the bow and stern plates in, slide the floor in and attach the seat but after that it's fifteen minutes to blow up the sides and then the floor, then top off the sides and give it a shake. All the inflatable parts are in sleeves, so there's double skin all round.
About the same time it takes the others to fill in the hire paperwork...
The pool-toy boats (the £60 ones) are still pants - they're BSOs - but these more boaty boats are scoring well. Sevy Colorados are all over. I must confess I went for the Pointer almost exclusively after stalking the Geohashing site. When the Vancouver girls were cheerfully writing up whitecaps, I figure it has to be worthy.