Build & Document Vultr Kali (2016.2) Instance with realvnc Server

I need a system administrator to help me figure out how to run realvnc server in a stabile, secure manner, which utilized "best practices". The person needs to: (a) Have their own Vultr account. (b) Apply for realvnc Enterprise 30-day trial key, if they do not have their own key already. The end goal is to have written documentation on how to best implement this cloud instance, using Kali 2016.2. Already, I have run into gdm3 issues. After having Vultr download and attach the [login to view URL] image, I install the OS. It hangs on "[OK] Started User Manager for UID XXX". I had to press 'e' on GRUB boot screen and add a '[space]3' at the end of linux vmlinuz... Then ctrl-X and it boots into text-only mode. After adding WaylandEnable=false to /etc/gdm3/[login to view URL], it seemed to work properly. **I have NO IDEA if this is the correct way to fix this - perhaps you have a better idea** After standing up the system properly, I download realvnc server from [login to view URL] and add my key (vnclicense -add XXXXX-XXXXX-XXXXX-XXXXX-XXXXX). This is where I get held up. I want to be able to have realvnc server start on boot for service mode. I also want to be able to control the geometry, so that I can have a nice high-resolution connection (with AES encryption). Now, if it would be possible to do this dynamically (like when I resize the realvnc viewer window, that would be amazing - think vmware tools). If any of this is confusing, or if you haven't worked with VNC and X11 servers before, this job probably isn't for you. Thanks! Looking forward to hearing your replies and thoughts on how to properly setup this kind of cloud-based system.