I've never done any turning but have always wanted to give it a try and hook up some spring pole system.
It sounds like your imagination is well stocked with ideas of how to do this.
Please if you can take some pictures and post them.
Years ago there was a Youtube video of a person with a pole lathe making a better bowl, faster than a person on a power lathe.
jtk
"A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty."
- Sir Winston Churchill (1874-1965)