Welcome Rob, quite a score for 'free' (minus your time and a few parts here and there), she's done hardly any miles really so if you like holding onto bikes this one has many, many more miles to feed you! I've never seen one of those fairings and I like the zany shape and white pin striping, I'd probably lower the height of the clear windshield if it were me but everyone has different things they like. I've had lots of help from the friendly inmates here, there are some very knowledgeable characters!
While going through my bike on various things I've had to fix I've come to the conclusion the airheads have benefited from decades of improvements to BMW's original boxer concept, very well designed to be easily maintained and made of high quality components. Most of the more complex jobs are within reach of average wrenching ability because of this.
Although it has sat for 10 years I doubt if it will take much to get it on the road again, just the usual stripping and rebuilding carbs, brakes and learning how to tune up. New tyres. If you can afford it I recommend getting the Clymer manual for airheads '70 - '96, however as you and Tony have pointed out you're pretty familiar with it all anyhow.
Enjoy!
