step one: do you want to keep you current wheels and tires?
there are two flavors of brakes: small bolt pattern which is 5X4 inch lug pattern (aka SBP) and the large bolt pattern 5X4.5 inch lug pattern (BBP).
there is factory flavors of each, and aftermarket set ups of both. there are adapters and work arounds on the controls ams, but if you change out the spindle (aka steering knuckle) you'll be swapping the lower ball joint.
you should not need to replace your booster, but you will need to update the master.
no one kit is easier to fit than another, but factory backed kits that use stock components enjoy a lot of parts availability and a wide base of knowledge due to them being around so long. they're also more robust than a lot of aftermarket stuff.
so, the question is: how do you use your car? what level of braking do you need? how much do you want to spend and do you want keep your wheels?