Robin2:
Seems like an awful lot of trouble just for style.If you really must have style what about a lazy-tongs mechanism - like a simple car jack. That gets two-end movement with a single lead screw.
...R
MarkT:
If left hand thread is hard to get, you can use gears to drive a second leadscrew in reverse.What about adapting a bottlescrew/turnbuckle?
Good suggestion, thank you! I'll see what's available and what my woman is okay with haha. Thanks everybody for taking the time to help me out!