If this is a new install, why not install the latest version? Any version after 6.2.0 would work for your demo, just make sure your ESX hosts are updated to support Windows 10.
We'll load ESXi 6.* and use Horizon 7.0.2 the way it looks now. I just thought someone might have a difference of opinion based on their experience. Like perhaps a newer version actually had bugs or unwanted features that an older version didn't have. It's always good to ask because using the latest and greatest is not always the best bet.
I have deployed Windows 10 Ent v1511 with the following;
App Volumes 2.11
You leverage these versions for your demo, you should have no issues.Mike_A