Getting the valves out is no problem just use the plug socket over the valve cap and a sensible tap with a hammer will pop the collets out just make sure you dont lose them.
Like I said it's no problem and I will give you a hand with reversing if you like !
Spacial awareness Tatey !!!!!!!
Put a piece of wood inside the block against the crank and use it to stop it turnng and loosen the pulley bolt.