[burnin oil]

If It were mine I would measure the diameter right behind bad joint then cut and thread the outside to fit a commonly available tierod that has the same taper. If its hollow then tap the inside and you won't need anything more than a jam nut. If he doesn't like that option then take a field trip to the local track and ask around for chassis builders. I am sure one of them could bend up that shape in a heavy wall DOM tubing in a couple of minutes.

Play around on TRWs site and there is a look up tool for their parts. It let's you search by things like taper size. Then you can find a few ends with TRW part numbers. Take those and look at the cost. Some cost 1/3 that of others. I did this recently to find a tierod end to connect my 57 GMC steering arm to a 70s GM front axle while doing a 4x4 swap while keeping the 57s manual steering. Just for fun that tie rod was a 70s dodge 3/4 ton light duty short side.