Be very VERY careful replacing the bridges and caps as they are a tight fit in the PCB holes and the plating used in the plated through holes in those days was nowhere near as good as todays technology.

You run a very high risk of 'pulling out' the plated through hole and thus losing the connection between the top and bottom traces.

Make sure you check the finished job using a mulitimeter on continuity and use wire links if you need to to ensure all connections are sound or you run the risk of having a board with many more faults than when you started.