I had a conference today with the client today about the base design. I'm on the right track with the exception of the tilt of the legs. They will stay vertical and split in the center and rotate slightly away from center. The trestle will protrude through the gap. I'm working on placement of the legs here, trying to optimize leg room for all. I really wish I could keep the extra 6" I have right now.

Here's another angle. The missing leg's getting the epoxy treatment over on the bench.

The last design element I'm considering is a slight taper on the legs. I've masked it off with tape here to get an idea of what it looks like. Try to ignore the upside down room around the table. Flipping the photo is much easier than flipping the table!

I've come in about 1.25" at the top of the legs. With the straight grain of this wood the effect is pretty subtle. I do think it adds a little something though. It may be a bit more dramatic when I attach the legs and top to the battens.
The battens will serve the function of keeping the two halves of the top co-planer and spaced the right distance. They will also facilitate bolting the top on instead of gluing to the legs. I'll be working on those tomorrow.