If we also had the parking brake, could we add that on?
It’s all technically possible if you get the right parts, brackets, etc. it just depends on what you’re looking for, how much you want to spend, and the effort you want to put in.
If you just want red brakes, powder coating your existing ones is the easiest path. Keep in mind the parking brake on the performance brakes is grey, so they don’t match.
If you’re looking for performance. Depends if you want unsprung weight reduction (single pistons integrated are lighter) or if you want better brake modulation with the dual pistons, etc.