sound system design placement

Hi Nathan,
I create a outdoor concert sound system design then stuck a problem on system design calculation and placement
so, concert stage size 40feet width,32 feet lenth which is middile of the concert audience area 300 feet lenth,180feet width.
i want use line array system i set main left and right position

question 1 how many line array box requered on this area?

2 is this area need front fill and distance speaker system?

3 what is speaker coverage angel horizontal & vertical

4 how to match this area through by forward accept ratio FAR

5 which position are placement the line array sustem

6 step by step process how to do all type calcutation system design

7 i want to maintain 6 db of minimum varience level on this area lenth upto 150feet.

please , you detail explane on mapp xt in video formate this system design

Hi Saikat!
I’m traveling for work right now so I’ll only be able to give a short response here. For us to be able to help you get started answering these questions it would really be helpful to either see some photos of the space or for you to sketch out a design of the stage, audience, and expected system location. Then give us your best answer to all of these questions, your reasoning behind it, and we can start giving you some feedback.