Good that you have received your licenses, that is the 1st requirement to complete your migration.
For the migration of your ShotGrid users, unfortunately we will need to beg your patience. We are enabling sites in waves, to keep an eye on resource usage and potential issues.
The first waves have been the pre-June 7th Trial sites and Monthly clients. The next waves will be targeting sites chosen at random. These waves are planned between next Monday and July 1st.
Admittedly, our plans may change based on our observations and if we encounter any problems.
Sorry to be restraining your enthusiasm.
p.s. regarding requests made in posts on Community : as a dev here, I have no visibility on who people are IRL, their email or company. So there is nothing that I can use to bootstrap a formal request, even if I wanted to.