I have finally chosen the Karndean I wanted and have 2 quotes - both of which are much higher than I thought.
The first one works out at about £54 per m2 (from a place that said it would cost £29 for the product and £10 for the fitting). I called up to query this and it turns out that ply is added on top of this when I thought it was included in the fitting cost. However, this is still a good price until I found out that the fitter isn't Karndean registered.
The second one is a proper supplier and the fitter would be Karndean registered. This quote came out as £66 per sq metre. However, again I was given the impression it would be cheaper (£33 for product and £25 for fitting so about £58 in total). They also gave the impression that fitting included all materials (as it should at that price!).
So what I wanted to ask was how much did your fitting cost per m2 and did it include ply and other materials?