Compact open air PA system 1-1.5k people

There is a task to choose a PA system for open air events for 500-1500 people.

It should be a relatively compact system, with a total cost of $20-25k. (Actually the budget is less, but we hope to find something on the secondary market)

As a reference we are using a kit like this:

4 x d&b AL-90 Loudspeaker NL4

2 x d&b AL-90 STAND ADAPTERs

2 x d&b AL-90 BASE PLATE Z5458

2 x K&M 50cm Pole Extension

4 x d&b V-GSUB SUBWOOFER

1 x d&b D80 AMP NL4

When we ordered this kit everyone was absolutely delighted with the sound, however this kit is way out of our budget. Tell me what you would recommend as an alternative.

Thank you!!!