Could it be possible to create a Generic-legacy image for Virtual machines also?
No. The current image is created solely to facilitate internal dev/test work in vmware workstation/fusion and is not formally supported (and not on other hypervisors) so we have no desire to create more versions. If it happens to run anywhere else it's a coincidence, and if it breaks (and it does, because staff are not using it often) then we have no promise of fixing things.