contains arsnic, and has rules
The only "killer" for me will be the slide. Most of these places have the slide as an optional extra anyway. Dont know where you buy your timber from - but it must be pretty expensive if it would be comparible to a precut one
The only ones I found on that site were priced between 600 and 1350 quid. The platform section in the 600 quid one is only 2'x2"6'. I will build one with a 5'x6' platform, (enclosed for safety) and will be far more substantial and also include a "room" underneath the platform for far less than half that. Also - I dont want the swing part anyway since that will be supported by a single support from the fort and customised to suit its location.
If you wanted to show a cheaper place that I did seriously consider, these ones are far better value than the expensive link you posted: