Advice for inspiration

Hello wiser men and women than I!

I want to make a 'demo' website to demonstrate to an organization I am a member of (non-commercial) that one like this would much better suit our needs (collaboration in writing, art, other digital media.. but in a hobbyist way fyi) than the stuck-in-time forum from 2004 we still use.

In this demonstration I plan on 'test running' the real site by myself creating all the group's members accounts and areas and whatnot.

Anyway, I notice that the newer plugins don't involve BuddyPress at all and that BuddyPress is starting to look a bit dated. What are your (1) opinions on BuddyPress v the Community etc plugins for this purpose and (2) what would you recommend for beginners to start with?

There, I made a post.

Thanks,
A. F.