Getting closer. Did some cutting in the basement and have it pretty well nailed down to the southwest corner. Ran a snake up toward the sink from my first cut where it came into the basement. Found that I had gone right up and out the vent pipe. Everything clear from the sink to the first cut and water came rushing down when Wonderful Wife poured it into the sink.. Unfortunately my snake fell apart at that point. Ran it by hand down to the southwest corner but was not able to twist at all.
Removed the rubber joiner from my cut on the south run and ran my snake by hand both ways. On the side where it went to the southwest corner I kept pushing and slamming it into the pipe but is would not go around the corner. When I brought it back there was a small piece of what looked like saran wrap wrapped around what looked like white plastic....hard grease. Had Wonderful Wife pour water into sink and nothing came out of my south cut. Was pretty bushed by that point so closed up the cuts and called it quits for the day.
Tomorrow morning it's a trip to Menards for a new snake and more of the rubber joiners. I am going to cut the corner right out, clean it, and put it back with the joiners. I seriously think a pvc drain pipe is in my future. I could still keep the vent pipe but could replace the rest of it in the basement without much problem. Gotta wait till I have two arms to work with.
Right now it's going to be a shower and a cold beer...or two. Starting to feel and smell like Mike Rowe.
Thanks for the help, folks! Greatly appreciated and will update tomorrow.
Moosetrot