Waterlogged C-Hawk

[Ranger]

We have a 19' C-Hawk at work that has gotten so waterlogged over the years that I get my feet wet casting off. The drain holes are just about right at waterlevel; my weight puts them underwater. So far as I know, there is no foam in the vessel.

Any ideas what to do to repair the boat? It has been out of the water since January; I don't know if it is dried out at all but I doubt it is completely dry.

Thanks