Wiki plugin – integrate or new theme?

I’m supposed to be building the ultimate Wiki for the Truffle Growers association. With citations, videos, lots of images and peer review at stages. It will have to be ‘private’ but I’ll be inviting industry people to offer input so I’ll need a good ‘membership’ functionality. For our main members site we use aMember software with a WordPress plugin which seems to work well. But this will have to be wider than our members database.

I can setup a new site as a subdomain of and install the plugin there, I’ve used and its mail addons successfully on another site.

Has anyone got thoughts on a theme which is best with the WikiPro plugin?

So, before I go blundering off, I thought I’d ask the experts.