Jerrysimon: Thank you! I was hoping for peopel to post pictures of such solutions here so we could find most of it in one place. I am going to post some pictures over the next few days on things I have done about luggage and plans I have.
I think it should be possible to start with a brompton frame and butcher it and use mainly the plastic piece that is atatched to the lugageblock and then atatch parts of a clickfix handlebar mount to that. Got the stuff in the house so I am going to post some more on luggage soon.
Anyone else?