Welcome Paul, you're in the right place.
A hockey puck and a steel half ball are good for shaping bowls, for example in a small lever press. And simple EW.
Renovation of joinery machines? Band saws with a suitable frame? I'm happy to dismantle it. Woe to every suitable saw I see. I extend the life of every saw in over new task by at least 100 years. The frame is a great base for EW.