What rooms to unlock to reach the backside of the Yavin IV stronghold?

I'm interested in buying the stronghold but not the whole lot. As i am a preferred at the moment, i'd like to know how much cash i need to save up to unlock the area's that i want.

The part that i am most interested in is the main room, the bridge and the area behind it.

From Dulfy.net

Room #  Room Name          Credits      Cartel Coins    
0       Initial Purchase   2.5 mil      2500 CC     
1       Temple Room 1      825k         700 CC  
2       Temple Room 2      975k         800 CC  
3       Upper Stairwell    450k         400 CC  
4       Lower Stairwell    450k         400 CC 
5       Temple Basement    1.5 mil      1200 CC
6       Temple Balcony     1.2 mil      1000 CC
7       Temple Grounds     2.6 mil      2000 CC
8       Sanctuary 1        1.25 mil     1000 CC
9       Sanctuary 2        1.25 mil     1000 CC
Total                      13 mil       11000 CC    

I suspect that i need:

• Initial unlock 2.5 mil
• Upper Stairwell 450k
• Temple Balcony 1.2 mil

Not sure what the Temple grounds are or if i need them.
Can anyone enlighten me?