I got the stickers from N2Grafix on ebay too. Laid them on top of the colour before laquering. I was considering spraying black, laying the graphics, then coating the colour and pealing them off. But in the end went for the quick approach.
I'm not sure about doing the steering wheel insert, if I can get hold of spare one I will give it a go.
I'm now after some Anthacite paint to do the engine cover.