I'd just do all the cooling system stuff now, while you have it all apart. (Then you won't have to do cooling flush for another 2 years)
As far as "lifetime coolant" - I have a hard time believing any fluid is lifetime. Besides if a hose ever blows - so much for lifetime eh? RE: water wetter - that's a good product (many here will confirm that) Just an added note - when putting your cooling system back together add a bottle of "Bars Leaks" - for insurance. It's a WP lube, and it'll add a little extra protection for gaskets, seals & possible weak links against leaking.