I'd send a PFD to CapOne since they still likely own it. They most usually keep ownership of a debt up to the point SOL expires, and they love to sue. If a few attempts at PFDing fail, then ask for a settlement and get it in writing from them before paying.
I'd largely ignore the CA, other than to send a DV. They'll go away in a hurry and a new one will take its place. Then send a new DV for that one too.
DOLA will change no matter what. Ignore that date. It means little and won't impact the length of reporting.