Heya Phil,
Great to hear from you again. Thats gonna be a fun restoration project. Cant wait to see the final result.
As far as serial numbers go, I not as familiar with the 1000's as I am with the WJ's. However, bu what I have read the serial numbers are hidden under the windshield.
http://craigvetter.com/pages/Vetter_Fairings/Series1000.html
Its also rumored that the really early models did not have serials.
I wish I could remember where and when I found my S1000 fairing. I know it did not come with the my 66 Yamaha Sport YM1 when I purchased it from another Ohio State University student in December of 1967, but I have neither the memory nor any sales documentation and I was not keeping notes at the time like I have to now with too many projects and an old brain to keep track of them.
I do know that there is no serial number scratched in the upper shell under where the windshield mounts, and I may have bought it without a windshield because I remember making one of Plexiglas in the University machine shop where I was working my way through school at the time. I think the Vetter logo is a little different (smaller?) than later ones too. My bike was damaged in August of 1968 in the back of my ford pickup when a dump truck in Savannah Georgia crossed the center line and knocked me into a concrete bridge abutment, and it did not have the fairing on it at that time. I may have acquired it between then and a photo taken if it with the fairing in March of 1971.
I put a number of miles on that bike with the S1000 in college including a long trip to Michigan with a friend to visit his parents when we were practically blown off the road by side winds in a storm and took refuge under an overpass. My one negative memory is that in rain the water collected on the inner edges of the fairing and blew back onto my knees and would run down into and eventually fill up the engineer boots I wore as riding boots then. The rest of me stayed dry as long as I kept moving.