I don't have the time to pick through all the volumes of my Concours Album but there are many frugal alternatives in them. Mainly cut-down versions of the original but a few from the Ninja family of fairings as well.
http://www.pbase.com/elvin315/the_kawasaki_concoursMy favorite is a Concours with a Ninja 1000R fairing. Probably near impossible to find today it does give you an idea what is possible.
At first glance the bike looks like a Ninja 1000R though along side a genuine Ninja you can tell it was originally a Concours. If it was a Ninja its perimeter frame would be visible in the gap between the lower fairing panels and the side panels. The fork, front wheel, and forward bodywork are Ninja, but the handlebars, gas tank, side panels, seat, and tailpiece are definitely Concours. The old Ninja fork is junk and the wheel is 16 inches. Prime for a ZRX frontend upgrade. The tighter fitting fairing and sport windshield blends perfectly with the Concours tank and plastic. The bike certainly looks like a Ninja. Don't know if he added the Ninja carbs and cams.