I had a look in the control file contained in the deb package and found a list of dependencies which I installed . I did not get a full start, as I am running only dCore ( no GUI) an foxclone is a GUI based tool, but I think that I now have a working method for installing the package so I can move onto a full setup on USB.. This is still a bit of a clunky process , the dependency list is quite tedious. I appreciate even more the value of scripts like deb2sce now.
Depends: policykit-1,mount,grep,parted,partclone,coreutils,util-linux,diffutils,psmisc,os-prober,pigz,qpdfview,hdparm,nvme-cli,util-linux
Thanks @Rich for the tips and pointers