A benefit of having access to a wood shop is a goodly supply of tube clamps. These are drilled through cubes of ash, bandsawn down the middle. They will be held together with a screwed on leather hinge.
I've been given the use of this pipe bender for the fork blades and stays by Andy, an engineer on our site. It’s a brute and scares the life out of me and my delicate tubes. Still, it’s certainly the best option I have so I’d better raise it's game.