Need help with "bruised" hull

[esoxesox]

Hello Boys,

I've found a little spot, about the size of a matchbook, that has been cut out and replaced with a glass patch by a previous owner. I believe it is a cheapo repair job from a hole caused during trailering. I never noticed it until it I was following someone and they commented on the black spot on the hull. The soft spot is right on the keel, center-line if you will, and adjacent to the thru-hull fitting on the forward fish box. If I leave the boat in the water it take on less than a gallon of water overnight but the boat is on a trailer 99% of the time. I drilled a few pilots and got oily dirt from the hold.

So, what to do? This is a freshwater boat and I am planning on some major teardown projects this winter. At that time I could "do it right". I REALLY want to get on the water ASAP and would like to postpone the "right" way until later. Can I get by drying the outside surface and applying marine-tex or West or something like that?

Any help would be great.

Thanks

Scot