I’d feel safer with a diy swing than a shop made one, given the corners they cut to produce things cheaply.
Yes, I built this on it’s side then tilted it up. But holy mnackerel was it a task and a half! I couldn’t lift it on my own and didn’t have help other than my feeble wife, so her job was to shove things under the brace as I deadlifted it a few inches at a time. Eventually it started to get high enough that the weight lessened and I got up a platform ladder to heave it more. All seemed fine until it decided to do a twirl onto one end and take me with it! Injury averted though and I got it into place, used ground anchors screwed down into the turf and built the slide platform once the swing was done.
For the price of ready built ones I;d definitely suggest DIY. If you spent the £600 and a few days work you could have something stupendous that none of the other kids will have!
I’ve just built a pond and bridge where that photo was taken from, and this summer I hope to do a climbing wall on the side of the slide platform. I cut down a 40ft pine near the house and left a 7ft stump which I’ve screwed little branch stubs onto as climbing holds. It’s definitely a kid’s garden!