I'm calling this build "Charlie's Angels"
Norra Wexley (29)
R5-P9 (3)
Expose (4)
Finn (5)
Alliance Overhaul (0)
Shara Bey (28)
Adaptability (0)
Jyn Erso (2)
Alliance Overhaul (0)
Jan Ors (25)
Trick Shot (0)
Dorsal Turret (3)
Nien Nunb (1)
Total = 100
Here's how it works:
Norra has Focus tokens from Shara's Action sequence with Jinn (crew)
Norra has a target lock from her own (previous round) action sequence
Norra attacks in her primary arc at range 2-3 = 3 Dice Total
Jan uses her special ability on Norra and receives a stress token (+1 Attack Die) = 4 Dice Total
Norra has Finn as a crew upgrade and has met the conditions (+1 Blank result) = 5 Dice Total
Norra has used her Elite Talent "Expose" this round (+1 Attack Die) = 6 Dice Total
Norra spends Shara's Target Lock activating Norra's special ability (+1 Focus result) = 7 Dice Total
Norra rolls her "natural" 5 dice and then spends her own target lock on any blanks plus the blank from Finn
Norra spends a Focus token on any (including re-rolled) Focus results including her own +1 Focus Result
Now take the above recipe at Range 1 and you now have 8 Dice Total!!!
On top of that, Norra also has regen abilities with extra Focus tokens (from Shara's Jinn crew member), Jan has stress removing help with Nien Nunb, you have two pilots at Skill Level 7 and one at Skill Level 8, you have one turret and two with Auxiliary Firing Arcs, two strongly armoured vessels and tonnes of fun rolling 7 to 8 attack Dice!!! Have fun and God bless 
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...oh well, I just like the idea of chucking 7 to 8 dice at a time!