Questions about head work.

pic # two looks to be very nice.as far as valve seals if the gides are good just the chep mushroom typ works good.I have seen alot of the teflon ones make the valve gauld to the gide my self I dont run any seals the vale will move freely and if it does puff a little oil on start up I know there geting oil.Im shoure you will here difernt.I lerded this from some top notch engen bilders.hope this helps....Artie