hello new to mopar slant

hey just got a pretty banged up 1968 valiant slant 6
fixing it up

I have a problem with the 3 on tree shifter. the bottom part where it moves the transmissions rods... lots of play and seems to get stuck between neutral positions with both pivots....
but cant seem to find any parts to restore it, I have though about doing a floor shifter but i dont really want to since I have bigger plans on the future.