Partial payaments, multiple users paying 1 order, deposits, not 100% up front
I have used D7 commerce module and looks amazing. I need to allow a user to login, add a holiday, insurance etc to their basket and then pay a deposit. Keeping the order active, then allowing the other people in their group to login and pay their little chunk of the holiday. Can't figure out if this is possible or I need to build a new module, any help would be appreciated.
Need to be able to make an initial partial payment on an order and then allow other users to make partial payments on another users (the organizers) total order.