Welcome aboard!
Your hobbies are seriously impressive, from painting to furniture building and jewelry making, you've got some serious skills. Rescuing that Jacaranda tree is such a cool project, and attempting to turn it into a bonsai shows your adventurous spirit. Your plan to cut it and let it grow from a few inches above the roots sounds like a solid strategy. The exposed root look could be a unique touch, so trust your instincts and go for it. As for defoliating the tree, make sure to research the specific care needs for Jacaranda trees and follow the appropriate timing.
