After cleaning the bark, the next task at hand was to fill the large crack in the top and the slab for the legs with epoxy, I used blue masking tape to cover the openings on the underside and the sides of both pices of walnut and placed them both over plastic/paper drop cloths from the depot. Their cheap and protect my benches and floor.
I used System 3 mirror coat two-part epoxy, mixed according to the instructions using some cheap plastic mixing cups from an autobody supply house. I poured the epoxy into the voids and cracks, waited for five minutes, used a propane torch to remove the bubbles, and repeated as necessary. Some areas required more applications as it took a while for the epoxy to displace the air trapped in the voids.
In hind site, I would use a quick set epoxy two essentially build dams around the areas needing to be filled as this would have saved a lot of the System 3 product from spreading over areas surrounding the cracks and voids. This would save a good bit of the product and a lot of sanding.
The pics below show before the fill, after, and after sanding and trimming the top to final size. I waited to trim it until after the epoxy was complete as it stabilized things and kept any splintering when the cut was made.
Thanks for looking,
-- She asked me, "Who are you going to please with that?" I said, "Me."