You could put those up to a wood or welded frame, with the hot wire to the inside if you want her to stay off the fence. I've yet to have cattle my self, but worked some from horse back. Just tossing this out there, cuz I'm 99.9% sure your sweet show girl will be very happy with all that handling, but as far as cattle and wild stores I have seen some crazy SOBs take out welded panels with out batting an eye...and 1200 rodeo bulls clear 4 & 5 foot fences. And at the same time I've seen cows that were worked so much all you had to do was point and they went.
Now I'm just asking, I know you want them clean but is that more for cooling or??? Do you use soap or just hose her down? I know my skin can't take that much washing, I brake out.
I've shown dairy goats and all I did was trim them, but at some point when I have cattle I'd like to show them.