Question on Brembo caliper compatibility

[Britrover]

I am gradually working towards fixing all the miscellaneous issues with our 98 Boxster, and have a few questions on the calipers as the front calipers in our vehicle are in need of being replaced. Seeking some guidance as I am sure others have been here before and I would appreciate the input prior to pulling the trigger:

* What year Boxster S/Brembo Calipers are going to be compatible with our 98 Boxster?

* Do the Brembo calipers require bigger wheels for clearance? Not sure if they are the same as size as the base model and want to make sure they will fit the 16 inch when set up I have.

* Are the regular pads and rotors going to be compatible with this set up? (Pardon my ignorance on this question)

Thanks in advance for your input.