Hahaha, thanks for all the responses to this, has made me feel a bit more comfortable with the idea. It's been done now anyway, definitely not going to be getting the looks in the Z this week that I have been used to.
Needless to say a R17 space saver doesn't look the best on the car...
Will be with this for a few days and will definitely be taking it easy. Thanks again for everyone's help, I'll write up a post once the alloy is done if they do a good job to let anyone else in the area know about them