I'm at 96k miles and I'm looking at replacing my timing belt. What do you recommend I replace along with it? Should I replace everything, like in https://www.amazon.com/dp/ (commissions earned), or should I just do the belt and water pump? I'm short on cash, but I want my car to last. I'm also looking at labor charges since I don't know how to do it myself (although I'd like to learn).