Jesautumn83

Here are some photos of the bridge

I recently acquired a 1986 Epiphone S-400 but I need a few parts to complete it. The lock nut at the top of the neck is missing. Wondering if anyone knows what replacement part would work? Also the whammy bar is needed but I can’t find a brand name on the bridge? It is similar to a Floyd rose but I’m sure what size of tremolo bar to buy? Thanks in advance