Need advice - which would suit better Wordpress MS or normal Wordpress?

I need to create a membership based website where paying members have the ability to create one single page to promote themselves. The site needs to be integrated with buddypress and bbpress functionality but I fear that a multi site setup might be overkill to manage. Is it possible to have paid membership have a custom editable page for themselves in a single Wordpress site by using plugins or is using MS the only way to accomplish this?