tHE TIMING belt, waterpump and belts is not bad for Lexus, but the fluid prices are rediculous....Toyota changed my timing belt and water pump for $500.....An independent shop like Toyotas only or something like that would probably be cheaper. Make sure you use OE timing belt, and power steering and alternator belt. Your car doesnt have a serpetine belt, just two v belts. The timing belt can be made by Mitusboshi which is an OE manufacturer as well as Aisin water pump which is Original equipment manufacturer. The spark plugs quite frankly could go to 125k miles with no problems...The tranny fluid drain and fill is a must...DO NOT DUE a flush on the transmission unless you want to replace the tranny sooner....