I bought a rectifier off E-bay, and before it could arrive, I really needed my bike and had to go get one over the counter for $200!
So, the one from E-bay has arrived, and I am offering it up at the price I paid with postage, $44.00 even.
It's not original, it's a chinese copy, but it looks very similar to the genuine Honda item I've got on the machine now, including the metal cooling fins on it. It looks just like this one - http://www.motorcycle-parts.com.au/XRR58.jpg
I have not tested it on a bike , as I did not fancy pulling my bike apart again, but I have checked the unit using a multimeter, and it's sweet.
Send me a private message if interested, it's sitting on a shelf, not going anywhere. Thanks.