I agree, Taylor did screw up when they did that.

I think part of the problem might have been when they did the MP wire sets, there
might have been a concern about conflict of interest with MP or some nonsense like that.

Anyway if 8mm is close enough and you don't mind enlarging the factory looms slightly, then you can order Taylor numbers:
75089 partially assembled wire set
46059 180 degree non-HEI style distributor cap ends
44300 plug tube covers

As something to investigate: they may offer a wire set that already comes with the proper distributor ends, but damned if I could ever find them.

That is what is on my 572 as shown. They're close enough to stock for me.