I need some help appraising a bike for a family member. Neither they nor I know much about Batavus bikes. It was purchased in the '80s and still has original parts (besides tires and brake pads of course). What I have been able to find out simply is that it is a Batavus Competition. It has the Reynolds 531 frame with all the Champagnolo parts. Please refer to the pictures to help me identify anything I may have left out, and of course, any value of said bike would be greatly appreciated.