Seems crazy (or lazy) to try and sell them as a single lot, surely plenty of people have ~£12.5k to spend on a restoration project, not so many with £100k to spend on 8 of them. If they do find a buyer, more than likely they'll just split them up and sell them on.
Our advice, as Lancia specialists, about 18 months ago was to ensure each car was complete and to drip feed them onto the market over the course of a year or two.
What a fantastic collection! I drove an Aprillia back in the early 60s and have not forgotten what a delightful, well balanced and complete package it was. Would that I was younger!
Breadvan?