Riveted hull repair ?

[Tin-Can]

I know many of you will say, get a boat with a welded hull. And if I had the $$, and was about 10 years younger, I just might do that. But I've had the "Tin-Can" for almost 14 years.  It has served me quite well. I've seen much older Lunds similar to mine that are still on the water.   But being a riveted hull (Lund) it has begun to have a minor hull leak from what I guess to be rivets starting to loosen.  I know it isn't from my plug leaking, and the leak isn't real severe but after a couple hours on the water, I can see water coming up in the plug well, to within about 2 inches of the deck.  I hit the bilge pump, and it pumps the water out very quickly.
But I'm thinking that maybe at the end of the season this coming fall, I would like to get my hull sealed somehow. From the inside under the deck I think would be the best. Exterior seal of the hull would just wear off on the trailer bunks. 
I am looking for a shop or someone with the tools and facility that I could pay a fair price to get this work done.  
I have not gone actively searching yet, and thought I might get some recommendations from the BFT family. 

Thanks in advance