G'Day Mick, thanks for that, I really do miss the big bugger, but there'll be more cats, and sadly more cats will kark it before I leave my mortal coil. It's like "fire and movement", you just gotta keep moving forward.
Your swingarm is probably off a K4-k6, Honda fitted a grease nipple around then, but the earlier ones didn't have one, like you say. I've been trying to remove a set of bushes from a K2 arm for a while now, I did the hacksaw cuts but the two halves are well rusted into place, so I might have to introduce them to my friend, Mister oxy torch.
Your bike looks great mate, and it's good that you're not trying to restore it back to original K0 specs, I'd hate to think what it's cost me to replace all the K1-k6 stuff that was on it with the "correct" K0 parts over the couple of years I've had mine, and it still looks like a POS!
Oh well, it is exciting when you find a correct part, I got that great "wrinkle" tank off Ron couple of weeks ago, (MCRider) and I won some correct K0 shocks on EBay this week, got 'em for 90 bucks, but only after I bought a pair of K1 shocks off the same seller then discovered his/my error, so we're in the process of negotiating some sort of compensation for the cost of the first set. All I need now is a recessed ignition and key and some mirrors, and I can go from "parts gathering" mode, to the next phase, starting the cosmetic resto. Luckily for me, the engine is a gem. Cheers, Terry.