The closest your going to get if you can’t find another frame to copy is to buy a frame and build a copy from that.

My 2c is that by the time you’ve spent a fortune on decent bending equipment, made a jig, bought all the tubing etc etc etc you’ll give it up as a bad job and use the already done frame.

I’ve got 2 lengths of T45 tube at work (about 9m in total of different size) for the A65 racebike project. That involves very little in the way of bending to complete what I need (chopping out from an original frame) but even still it won’t be easy.