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If the account isn't open and you aren't using the card, then I'd do absolutely nothing. It's general practice by the CRAs to delete any lost or stolen TL after two years. For some reason, the CCC or the CRAs never followed through with that. If you were to contact them, if this account isn't open, then you'll likely wind up losing it off all 3.
That is strictly between you and the OC. Account reporting is strictly up to the credttor to initiate, not the CRA. You cant just transfer account reportngs. Unless you somehow conviince the OC to (1) reopen the dead acccount, and (2) to then also transfer the full account history of the long-closed account over to any new account you open with them, then it wont happen.
I think your chances of pulling this off is minimal.