Good guitar, ****ty bridge (Pro Rock'r). Yes, Edge/LoPro arm fits. Usually they're pretty solid. Pups tend to be on the hotter side, particularly in the 1984-85 models, using the rail ones or black covered EMG look-alikes. Fantastic necks - Fenderish C-shape.
The one in the link looks like it hasn't been played much at all though. Seems that someone did what I did in taking off the behind-the-nut string lock and replacing it with a string tree. If you're used to Edge trems, these pre-Edge trems won't cut it for you. They can be made to work ok, but they don't have the range or all round stability.
If you really want a Roadstar type, get an '86 model of some sort, unless you plan on decking the bridge on one of these pre-Edge models.