Hi! My neighbour said he had a bass that has been in storage for a decade or two and he wants me to find out if its worth anything. The bass is a Thunderbird, and if the serial number is correct and if the bridge is original then its likely a 64'. But... someone has: 1. Drilled a massive hole in it to make room for a neck humbucker 2. Installed active Alembic pickups and electronics 3. Drilled extra holes for the knobs that control the active electronics So what do you guys think, is it from 1964? Is it worth anything in this condition?