KEF 107 - opening them? + other questions

Hey everyone,

Long time owner of a pair of KEF 107 originals. Replacement parts and drivers dont seem to be available any longer.

Its a well known problem that the foam surrounds on the woofers tend to degrade and fall apart over time.

Recently it seems my bass has dropped off. I get the impression that one of the woofers has separated from the surround. Could be the crossover.

I'd like to open them to inspect. Anyone done this? Advice on how to get to the woofers?

Next, should I need to replace the surrounds, what kit should I use? Can anyone recommend something for me?

I have seen mentioned that there are instructions out there on how to replace the surrounds, can anyone provide a link to a reputable link?

Lastly, I have read that capacitors will degrade over time, is this a myth or true? Am I dreaming thinking the caps in my crossovers can be replaced? And how can I get the same quality caps? How do I even check them?

Thanks, everyone.