First off ..... HELLO! from one Chattanooga guy to another.
I haven't replaced the oil pan gasket on mine yet, but it should be a straight-forward operation with a socket and ratchet. Advance auto has the pan gasket for $25.99. All you'll need otherwise is some type of scraper to get the old one off and the surfaces clean. Crawl under there and get after it.
And never, EVER put any type of "sealer" in your oil.