Hey everyone...new to the forum so wanted to introduce myself. I'm Brando, I'm buildin a 65 F100 Longbed

Anyway runnin into a lil sticky spot on her. The shift linkage under the truck is just some all-thread that's shot, bushings are rotted, shifter doesn't want to engage properly into the linkage like it should. I am having a hell of a time finding where I can get these parts! Anyone dealt with this?
Thanks!!