Hi Billy
Had a look at the wheels, mmmmm nice look, love that ally powder coating, just need some DUNLOP stickers on the edge of the rim and those spinners from your shed.
The wheels on our red car are:
Front 16 x 7.5" with et 20
Rear 16 x 9" with et 15 (+25mm spacers)
If you go the the following website:
http://www.gtsparkplugs.com/WheelOffsetCalc.html
and put those measurements into the "Wheel Size Offset Calculator" at the bottom of the page, as "Current Wheel" then stick the other wheel details in below it will tell you the changes in gap to the spring and arch. It's a really useful guide when looking for new wheels.
Another useful site is:
http://www.kouki.co.uk/utilities/vis...ize-calculator
when sorting out tyre widths and profiles.