If you are looking to keep the aesthetic of the Ti color on your build, I have an Enve/Edge post that is painted that color. It's 27.2 with a setback, but I only have the clamps for the standard rails, not the oversized rails so you'd still need to buy a clamp kit.
I hadn't actually decided to sell it, but its a possibility if you are interested.
Also, do you need a setback or a pillar post, Ti cycles does a pillar post that has a Thomson-esque clamp as a production piece for a reasonable price link