Shift bushing r&r, experience / Comments? Options

[914ghost]

I've got a tailshifter and have my shift linkage completely removed front to back- I was wondering what advice or experience anyone has on top of replacing ALL bushings that helps get these things shifting as well as can be expected.
It was actually not too bad before, when in 1st/reverse there was little or no play, but 2nd-5th had some slop.
The plastic 2 'balls" at the pivots just snap off?
Also, My rear shift rod had "some" wear at the rear bushing at the nose-cone, anyone ever epoxy/JB weld this area to get it flat again?
Seems like it should hold up through a plastic bushing.
Also, the "ball" at the tail end of the shift rod has 2 small flat-ish spots where its worn at the shift selectors, is this worn, or should they be like this for free shifting?
Is a short (weltmeister) shift kit worth it in a tailshifter?
Anything to tell me?
TIA (IMG:style_emoticons/default/smile.gif)
Bob O