They are a nightmare to fit and do it well, you can bung then on and live with it but to be honest who wants to do that!
For a start they're 8 inches wide which don't really go on an RST and the other thing is the smallest tyre you'll be able to run is a 215/40/16.
If you like the look of them then your better off going for the 7x16's from a mondeo or similar that are replica's of the cossie wheels