I have an old style 881 with all metal parts and has a real wood stock. The barrel shroud is beat up and the internals are weak. The wood stock is in good shape as well as the metal receiver and metal pump arm. I was thinking about just buying a new 880 and “blending the best of old and new” to take advantage of the the improved valve design but keeping all the metal and wood components. My question: is this even possible?