It finally happened, my "Evilution" engine finally decided to mark its territory by order of a leaking push rod base gasket on the exhaust side of the rear cylinder. I know I can get the rocker box cover off with the engine in the frame, but would I need to remove the rocker box entirely in order to remove the push rod or just the exhaust rocker?

I'm also debating just replacing the bad seal or if I should go on and get the two piece push rod tube conversion kit to make sure I don't have an identical problem in the future. Does anyone else have this done to theirs?

Once again any thoughts/recommendations would be greatly appreciated and I've attached the link to the kit I am considering as well.