Well, I guess you could go with an Arizer Solo, but your going to have to pack it a few times my guess is. 8 people is a lot of people. Plus, it uses glass pieces so you have to be careful of portability.
Maybe you can get the Arizer Extreme Q which has actually a bag system and can be passed around easier. However, it's not portable and it's a table unit.
I don't have any vapes yet, but I've been doing a ton of research on here, and ordered my WISPR and Extreme Q last week. They are coming either today or tomorrow.