I bought sticker number plates from pro plates. They were around £23 for the pair but in hindsight I should have got a rigid plastic rear plate. Both plate brackets were easy to take off. You prise the top corners apart and the front folds down allowing you to take the number plate out. You can then see and undo the two screws holding the bracket to the car. The front left two screw holes that some people just leave but I filled them in with glue so there was some support behind incase a jet washer got too close. The stick on plate was then easy to fit. Once you take the rear plate and carrier off you are left with a large recess so you wouldn't be able to use a sticker number plate. I just used the original plate and stuck it on with double sided tape then put the sticker number plate on top of that. It was an identical size so you cannot tell it's not one plate.