Anvil tubebender dimensions?

We have a lovely Anvil tubebender, but unfortunately only with a 22.2mm bend die. I need to bend both 16 and 19mm and since Anvil is out of business I thought about making them myself. I can of course take all the dimensions from the 22.2mm die, but figured maybe someone here had the same problem and has a drawing in either 2d or 3d of the part.
Of maybe someone (in Europe) has a 19mm die for this bender that they want to get rid of?