thanks for the advice arb, ill be getting a timing belt cover from the jy next time i go.
if my wallet lets me ill do rod and crank bearing all together, as for the scratch in the head, i dont know what your talking about, my head doesnt have scrathes on it, they only problem is the crack between the valves, but i measured them and they are within specification of 0.5mm so i think im good to go,.
cheers.