Evening All!

Question. Where the fog lamps are on the es model and above, roughly, what's the surface area of the section and area behind it..?

Reason: Have always had fog lamps and they've always been a plus, have now come into a pair of fairly decent ones off a friend. I have the standard DB model, so no fog lamps, just a moulded plastic cover...
Would there be any problems installing these? Anyone know?
Would get a professional to install them, but i'm just thinking about the cutting of the plastic section on mine where the fog lamps would be on other models...

The measurements of the lights i'd be putting in (including the housing) is 3.5" by 3.5". Is this roughly the same size as others'?

How difficult do we think this could be..?

Thanks.
Ben