I’m getting ready to pull my motor to replace the cam chain and the oil pump chain. Looking on E-Bay I see there are multiple gaskets sets available from $50.00 to $130.00. Is there a noticeable difference from set to set? I also have a noisy clutch when I let it out; I replaced the discs, the springs and the small bearing in the cover. Is there something else I should be looking for when I have the front and rear covers off?