It sounds like there is some interest in this, but also a lot of challenges to overcome, namely security of the coins, as well as the time & effort to find sponsors and handle all the logistics.  If there is anyone interested in either adding part/all of their collection for sale or display only, or volunteering in some way, kindly let me know.   If I dont hear back from many people, then I won't proceed further with this.  I think this has to be a community effort to do this right.