The types shown in your photo mount to the handlebars. The large, clear plastic units, tend to act as kites, catching the wind, and applying it's force to twisting your handlebars, for you. The Vetter Windjammer model Piute has on his, is frame-mounted, applying the force of the winds to the frame, and the bike as a whole -- has very little effect on handling.
The Windjammers can be had off of e-Bay, and Craigslist.org, but they are not quick, or easy, to dismount. They also create a bubble behind them, so the driver gets little air flow, on hot days. Vents can be had/installed, to help.
For what you want, I would suggest no fairing: the small, racer type in your photo, will do nothing to take the wind away from you when riding upright. It would be cosmetic, only. I would suggest investing in a quality riding jacket, or one-piece riding suit, if you can afford it. There are mesh jackets for hot weather riding; one-piece suits tend to run in the $500-$1,000, but the high-end units can be put on/taken off, in around 10 seconds, they're waterproof, windproof, vented, and breathable. A flip-top, vented helmet, with an internal sun visor, would be a wise investment, as well. Cheers!
1979 CB750K (sold, 2012, but not forgotten)
1983 Kawasaki 440 LTD Belt Drive (sold, 2011)
1993 Kawasaki Voyager XII