The wood looks fine actually, about like mine. I would get that 44/40 bluing paste from brownells.com and try that for the metal. Remove the previous bluing with birchwood-casey's blue and rust remover or a liberal amount of hoppes and steel wool. Degrease it with a degreaser spray/solvent, let it dry then put coat after coat of the blue paste on, rubbing it evenly across the surface, wipe off excess paste, let dry for a while then keep doing it until you get the color you want. Other than that the rifle looks nice, I wouldn't mess with the wood.