I just rigged my 81 centurion out with front and rear racks, it is not made for either. Just attached the rear to the brake bolt. Drilled the rack to accept a center brace, as it was made for two braces. For the front I have an old Blackburn, made my own p-clips out of brake lever mounts and some thick pieces of tube. I have also in the past used a u-bolt, but its rougher on the paint even with rubber padding.

I wanted a shiny rack that complemented the bike as well, was going to use this, http://www.motostrano.com/Wald-Rack-...FY2e4AodMSsA1w Got mine at a surplus place, had no idea it was a fifty dollar rack. Its chromed steel, and looks really neat. Its an anchor though, and I decided on just using a modern black rack. It will have big panniers on it for a month or so anyway, and so will be hidden.