We might have what you need -
www.2much.net - it's turnkey, modifiable and you can reserve your performer for your site as well as populate the main live content page from our shared performer database (made up of the shared-out performers of all the other sites we've built).
Only thing is your solo girl can't be shared out to this database (MBase) if she's going to be doing free shows for members - cause then she'd be doing free shows in free non-membership areas at other sites (just don't share her - it's completely elective).
If I remember my sig has my contact - or call 1.866.662.6824