At this point the core structural module is the truss, which I believe is doing fine, being essentially an unpressurized aluminum skeleton. You could eject the

At this point the core structural module is the truss, which I believe is doing fine, being essentially an unpressurized aluminum skeleton. You could eject the pressurized components and bolt a whole new set onto it, but at that point you might as well build a new station, and let's be honest the part of the station everyone is sentimental about isn't the scaffolding