I've been going through the same quandary with an '87 Elance 400 I recently bought. I'm leaning heavily toward replacing the aero levers and incredibly narrow handlebar with Cane Creek aeros and a 44cm Cinelli, respectively. The added braking power from aero levers will by a major justification/rationalization. I intend to ride the bike, so I'm not inclined to keep things on it that might discourage using it. If I decide to display it as a museum piece someday, the OEM stuff can go right back on.