Here I have managed to model the tower slide for my scene. It wasn't too tricky to create by simply adjusting basic geometry with a seris of extrudes and bevels, though I also tried to the lay the UVs out along the way.
The main problem to overcome in this model was in creating the spiral slide, as initial attempts with the CV Curve tool was just not smooth enough. Digging around on the net, I found a simple and effective script avaliable in the Maya system files known as 'spiral.mel', that creates a spirial CV curve once inputted in the script editor. Using a lattice deformer allowed me to scale the curve proportionally to the tower body, before modelling and extruding the faces of the slide along the curve to create a smooth spirial slide.
I'm pretty pleased with the way it has turned out so far. Though, in hindsight I may return to use ncloth dynamics on the flag to simulate the wind. If anyone has any pointers for this I would be grateful. From here, I will move on to the other objects to make.
Any thoughts/feedback is most welcome as usual.
Reference images used found in the previous post.