my driveshaft busted at the worst possible time

[captain_murphy]

Ive had my '84 720 for nearly two years and love it like a child, but im leaving the country and cant take it with me. I was supposed to meet a guy today to sell it to him but on the way home wednesday night, the ujoint at the front of my rear propeller shaft decided to sieze up and destroy the flange yoke. What I am wondering is, does anyone have experience in repairing this without having to replace the entire rear propeller shaft, and more to the point, if anyone knows of a place where I can acquire one on the cheap?