Virgo has a single p2 repository that contains all Virgo distributions. The repository for version 3.7.0.M01 can be found here. There is a repository for each released version.
As shown in Section 3.2, “Installing with the p2 director from Eclipse” you can easily install VK in a desired destination. The only director argument that needs to be adjusted is -installIU.
For VK the right value is kernel.product.