The repair has been successful, thanks for your suggestion.
It went pretty much as you had described; I epoxied the two halves together, hammered some solid copper wire into flat strips and soldered them across the etches to bridge the conductor paths.
Now that it's operational again I might consider making modifications; replacing the rather thin internal wiring with something better, and perhaps, experimenting with other crossovers, bi-amp wiring etc.
It went pretty much as you had described; I epoxied the two halves together, hammered some solid copper wire into flat strips and soldered them across the etches to bridge the conductor paths.
Now that it's operational again I might consider making modifications; replacing the rather thin internal wiring with something better, and perhaps, experimenting with other crossovers, bi-amp wiring etc.