DC is basically your only source for a rebuild kit or getting it drilled for eyes. You could however source the orings yourself, but a tool kit and do the rebuild. They are really very easy to work on once you know what you're doing.
I would recommend not drilling it for eyes. If you want eyes I'd try to trade it with a little cash for one that already has them. You won't have half the money into it and there are people out there that would love to have a blind Viking in that condition.