Clutch options?

So i ordered a brand new 3rz for the super yota but am thinking of doing it up while the motor and tranny are out. I was looking at a stage 3 clutch but is it worth it if its a stock motor. i kinda abuse the thing offroad and pulling out fullsize chevys and fords but will the clutch hold better doing burnouts and shit? Also a header that doesnt cost 300$? Is a stock manifold the way to go and are those 45$ ones on ebay any good. thanks!