miamikid2

I might be be buying a s550 and will want to put a wald black bison bodykit on it, Is it possible to fit it yourself? and what price is it to change the exhaust, both the whole system to make it sound better and just giving it 4 exhaust tips so it will fit the bodykit. so my questions are can i change the bodykit myself (with zero experience) and how much does it cost to change the exhaust kit or just the tips, thanks for any help