Suitable Hp pump and impler or stages for irrigation of 1000 plants

I dug a borewell

Drilled = 570 ft  
Casing = 124
Water stiked at 342 ft yeild 1.¾ inch = 2200 LTH
Progasive same till 480 feet.
 

We got solar power

Solar panel 320 watts X 9= 2880 wats ( converted DC to AC)
3 core pump head
 

Kindly suggest for Irrigation, height 6 ft above the ground

1) how many Hp 3 pump core heah are required
2) How many stage (impilar)
3) size and length of pipe

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