is it possible for a 'send message to store owner" type link to be on a site?

I don't really want to use buddypress but can the messenger plugin do this?
Otherwise can buddypress be restricted to just forum and messages? And can a buddypress message link be added to a site?

I am not sure exactly how buddypress intigrates with marketpress. At the moment when I install it it seems to take over the admin menu bar at the top so I can't add product from that menu.