I say go for it.

Disclaimer: I have two 1989 Schwinn Circuits, one I built up from a frame set, the other I purchased from a friend a couple weeks ago. The one I built up is full Shimano Tricolor with 8 speed brifters. The one I recently picked up is almost all Sante with Dura Ace 8 speed downtube shifting. That makes them different. See how I think? I have a 1987 Trek 560 frame set that I picked up recently that will be built up with 7 speed 105. It is aqua. Very different, it`s aqua and 7 speed.

Today I got a deal on an all original 1987 Schwinn Voyageur. It`s 18 speed and has racks. I can honestly tell my wife it is different with a straight face.