Have you considered contacting Hyundai Corp, in Korea , they seem to be closer than most other places ?

You are at the mercy of the shippers far as cost goes and you may need to bite the bullet and take what you can get hoping to get the right part.
It would help if you supplied the shaft length, from where to where, the diameter and a picture along with the VIN.

I cannot tell if the flange on the end closer to the center brg comes off, does it?
Be sure to mark the position of the flange in relation to the rest of the drive shaft so on assembly if you can obtain just the center brg,it goes back together as originally assembled and not result with vibration problems.

 

Thank you once again for your advice, the flange does remove and I have marked all part that have been removed. I will try and contact the Korean option. I will update with anything further.