Recently purchased a 2000 4Runner with 160k in great shape. I'd like to start with the suspension as it sags some. (Not too bad) if I got just coils or just shocks, not both at the same time, what's the..wisest choice? It's not bouncy, but soft. right now a full kit isn't an option, but piece by piece is fine. Ideally, a 2.5 lift that can take some weight in the back. Any insight?