Here's a major FACVM Gotcha to watch out for.
http://kb.fortinet.com/kb/documentLink.do?externalID=FD34405
We had a FAC200D, and the TAC converted our config to load on a FACVM. Not one said, "Hey don't let the FACVM communicate outbound before you re-load your converted config...".
So we have 12 tokens now that we can't provision. I've spent a good part of my day researching what I thought to be an LDAP error before finding the above link.