Finally got round to this today. The guide was very helpful, massive thanks to whoever took the time out to write it and take the pics, it was brilliant.
One thing didn't quite tally up though, for my 172 FF (guide's for 182s). The two screws underneath the steering wheel didn't need to come out to take the wheel cover off, and they weren't longer than the others removed.
Otherwise, it was spot on. It was an absolute pain unclipping the dash from the passenger airbag assembly though, and I ended up bending the clips a little bit. Oh well, pliers soon sorted that out!
Thanks again guys