There were several bodges - the hole through the bottom of the gear lever that is held in place with an M8 bolt had the bushing missing. Top of the gear plate was mashed up, stop plate was worn.
The coupling that joins the front and rear linkage rods didnt have the proper bushes (you have to take the coupling off to replace them), it had been bodged up with some rubber tubing.
The bulkhead and rear bushings by the transmission were worn as well. This would have made a great example of how bad things can get but still work!
Still waiting for a few bits but half of it is back together. The rear conical screw was mashed so to get the rear link rod out I dropped the gear selector rod out of the gearbox with its housing - you lose lots of gear oil but it allowed me to work on getting the conical screw out and also remove the head shift rod to replace one of the bushings.
A bit fiddly but got there and cant wait to finish it next week and see how much better it shifts.
I got new regulator from Lucas which is the same as a beetle with alternator. Only about £12 and its solid state so should last for a bit.