I went down and measured my GTR bars and came up with this:
Width 28
Rise 7
Pull Back 6
Center width 7
I did this with a tape measurer and it is approximate. I'm not real sure how they are doing the "pull back" but I visualized the front centerline of the bars and measured back from that to the ends of the grips.
Maybe someone else could verify these,
It looks like maybe "B - Magna Hawk" might be somewhat close on your list. As far as I know GTR bars had no crossbar but the GTO bars did?
I never thought about it but handlebars might be rare, kinda like chain guards, kick start levers and engine side (carb) covers. The chain guards were flimsy and cracked and got tossed and the rest bit the big one in any kind of wreck or mishap, even falling over in the garage probably got the bars.
If Mike doesn't have any bars I'll go check the parts bike in the shed, I don't know if it has stock bars or not.
Try Richard also.... I'll bet he still has Kotaro's Repops. That might be the best way to go. I certainly won't deduct any points if you use them, plus, they are probably nicer than the real ones.
Tomo