Also if anyone can give some clues about how quickly are more countries going to be involved on the VPP program.
You need to talk to apple. Your company lawyer should be able to interpret legalities. One comany or many companies? Corporate structure may make a difference.
You could try distributing the software from an mdm.
Airwatch, Nukona, Meraki, mobleIron, or Zenprise
Meraki -- A free MDM