Better late than never, I suppose.
To fit the H4R3 into the steel bucket, you have to cut a hole in the back like so:
Not enough room inside for the magic box or the plug.
Really odd, as there was room for all of that inside the later model plastic bucket.
If I decide to keep it, perhaps I'll put together a dedicated harness to eliminate that 3-prong plug and tidy it up.
The mesh heatsink does poke out, but can fold back inside.
Fitted it to my '98 M750, takes a bit of fiddling around to get all of that stuff positioned so that there's no fighting with the other stuff behind the headlight.
Likely a bit easier on gen2 bikes with no speedo cable.
Pic of the light pattern on low beam:
In person the lighting is better than it appears in the pic.
Sorry, no pic on high beam, because.......
......in the meantime.......
I picked up one of their SS25 lightbars.
They've discounted the price quite a bit, I just couldn't resist:
http://stores.advmonster.com/ss25-light-bar/It comes with it's own 2-pin plug, and a pigtail.
You can see it in my first pic, the grey and orange connector, spliced into the high beam circuit of the 3-prong plug.
Whacked out some brackets, and mounted it up.
Here's the pic of it on, along with the high beam of the H4R3.
Again, it's better in person.
I'll try to get set up with my real camera to fix all pics to one shutter speed/Fstop, and have the wiring accessible to isolate each light.