l recently bought a used Gottlieb Crosstown part populated playfield which l intend to renovate and swop into my much worn Crosstown. Very little of the components on the underside of the playfield are salvagable, everything has been removed. De-soldering the light sockets from the earth wire has revealed that it is not in a good state either. Would anyone have any recomendations on what l should look for?, thanks in advance