I have a fully-working Hercules yoke and rising bar in excellent condition. The base of the guitar stand was defective (the plastic pieces deteriorated and got all gooey) and is no longer useable for me.
All this needs is a base OR you can detach the yoke from the bar and may be able to use it as a wall mount or something.
I still have the base and can give it to you if you want it. A drill and a bolt would probably allow the stand to work without height adjustability. Would've tried this myself but I don't have the tools for it.