Hi Sam
You'll find that you need to use some open nuts.
If you want closed ones, you should be able to find some deeper ones or perhaps you could fit shorter studs.
I notice that you said your wheels are 13" rims.
You may find that you have a problem fitting those to the rear of the car as they will most likely foul the lower wishbone mounting points.
It would be best to check the rear fitment before you start spending out on new nuts or studs
