Thanks for all of the feedback on this one. I really didn't think twice until I saw the Vintage Trek site and the brochure for 1985 and realized that my 560 was as stock as the one in the pciture... down to the bottle cage, yellow cable housings and Cyclone pedals. Suddenly replacing one missing brake lever seemed to matter.

I think that I will go for upgraded aero brake levers and hold onto the one original, non-aero Suntour lever until I can find a mate.

Thanks again. Once I get the bike back together I'll snap a photo for the forum.