The 365 N3 has the same sized cabin as the N2 and for 7 people in VIP configuration it would be very cramped. The ones I flew in VIP role were configured for 4 people, with the possibility of increasing to 5 by folding away the video screen. The advantage is better single engine power than the S76, smoother ride and the fenestron is good for going into bush sites, villages etc., where there is always the danger of people walking into the tail rotor.
The 412 requires far too much maintenance and is slow and rough!
If you want something currently available go for the AW139. That's very comfortable for 6 or 7. If you're willing to wait, as 212 man says, think about the AW 169.