Beds on left:

4 beds with 4 rows in each = 16 runs of drip tape x 50ft each = 800ft

Beds on top right:

8 beds with 4 rows in each = 32 runs of drip tape x 15 ft = 480 ft.

Bed Group #3:

3 beds with 3 rows in each = 9 runs of drip tape x 30 ft = 270ft 

So you need 1550 ft of drip tape minimum.

*Prices subject to change