Stock consignment

I have 2 concerns regarding stock consignment:

  1. Is there any integration in the usual sale/purchase process planned?
  2. Whats about consignment stock in foreign countries? In EC you need your own VAT-Id for each country you want to have a consignment stock (Origin: https://de.wikipedia.org/wiki/Konsignation , sorry only in German, the English Wikipedia doesn’t mention). Should we have a validation/constraint for this?