I responded to several individual threads but wanted to make a post about the Third Hand Rivet tool being back in stock.
I picked one of these up several years ago and it is the most versatile riveting tools for pinball. Traditional rivet presses do not afford the flexibility that
the third hand does. I've used it for awkward jobs like Wh2O boulders and the Doctor Who subway ramp. I have a table top bench and will clamp the press to stabilize it as well.