1992 V20 factory Livewell repair

[Petrus]

my 92 V20 came with a factory livewell mounted under a lid in the stern. Am in need of a couple of replacement parts.

There is supposed to be a highspeed pickup that is used to fill/aerate the livewell while the boat is moving.
The flow is controlled by moving a lever mounted on the inside of the port the gunwale. Moving the lever changes the position of the pickup at the stern which adjusts the flow. Trouble is, the cable ( more like a piece of stiff wire) is broken and the pickup is missing.

Any thoughts out there on a source would be appreciated- am trying to get this baby back to factory original.

Thanks for any and all suggestions.