I own two astronomy telescopes with hand-aspherized ED objectives fabricated by an engineer - Roland Christen - who previously worked on military optics....both under $10K. He retired from that career and started Astro-Physics. You must be familiar with them. I believe he was actually working the optics in the U2 spy planes in the late 60's.If you want expensive, I have seen hand aspherised military lenses at one million dollars plus.
Regards,
B.
You should check out Berlebach tripods if you haven't. They don't need to send anyone on remote service trips because they never need service. When you compare their wood & CF tripods to what you get from Vinton or Sachler it's actually laughable. I just upraded to a new tripod from them after checking into the video tripods.