The buckhorns on my 84 vt700 were terrible. You could call them comfortable, but definitely not made to maneuver. I totally get where OP is coming from.
I just bent mine a little straighter. Didn't think I did it enough but it was a world of difference for handling. Straighter bars came with an instant boost in riding confidence. I had bought a set of straighter bars but they hit the tank at full turn, hence bending the stock ones.
The bars on mine in my sig pic are available. I took them off and replaced them with stock bars, then replaced those with another set I got at a swap meet for $5. The ones I'm using now are very close to the stock ones, with a little less pullback.
selmer brings up a good point. When I had the bars in my pic on, the controls weren't a problem, but the mirrors were. I could see the lanes next to me, but I couldn't see behind me at all. The mirrors weren't angled out enough. Plus, the cables hadn't been replaced so they were bent to the point of almost binding up.
I'm still not completely comfortable with the ones I'm using. My left wrist hurts from the angle of the grip during and after any ride, even short ones. I think something with a similar height and width to the stock bars, but with less pullback would be better.