What route would you take?
The cuff fixes my lack of 5thgear issue, not having a replacement, it seems to erase the 3rd/4th gear spread & stripping issues so they say.
With only the high rpm shifting issues left to deal with. I have a stiffened up the stamped clutch fork so it wont flex and keep the clutch from disengauging. I am making solid endlinks for the shift cables and making a steel shift piece like apt does that replaces the flexy plastic one. That should help out the hard shifts alot.
And the WOT BOX will take care of the rest.