Not sure if this is helpful but sometimes any little trace can be that one you need to move forward.
I stumbled across a gentleman on Facebook. He was located in the states and had an impressive inventory of Campy's in various conditions from original to restored. Some in need of restoration. I remember spending a lot of time looking at his inventory and thinking about how he had carved out a nice little niche market. I could see from the 'sold' listings that he had moved an impressive number of wheels. Sadly, I can't seem to find him today. I strongly encourage you to post in the DeTomaso groups on Facebook. I know some don't prefer that platform (and I concur with those feelings) but when you want to take a drink you must go where the water is. If you like, I can make the posting on your behalf and then relay the responses to you via email.