What Is The Cheapest Double Pedal I Can Get How Should I Set Up My Gig For A Rock Band?

How Should I Set Up my Gig for a Rock Band? - what is the cheapest double pedal i can get

Groups:
I will be a live show with my band that is hard / classic rock. There are two guitars (mostly, but sometimes distorted acoustic), bass, keyboard, percussion (three toms, bass, hihat, ride, two crashes, splashes, bells, snare and Cymbol China), a singer and two backup singers, the the guitarists are.

Zone:
Half a large garden with about 100 visitors. (there will be plenty of spaces left)

Current Team:
All instruments (including pedals, etc.), guitar and bass amplifiers.

Question: What do I need?
I want it verrry professional sound, so I assume that must be executed by the way, what I PA PA. I, you also assumeFor users who should be on the Palestinian Authority, which I will go so far as that, I wish I had the drum and the bass is very important as I deal with it. Should I mic'd guitar amp and run by the Palestinian Authority, even if they are strong enough for its own existence, and basically anything that crosses the Palestinian Authority and then practice with the mixture one to us. I also have amplifiers for microphone or should be managed directly by the Palestinian Authority with an external amplifier output. What should I MIC drums, the bass drum that I know something else, or should the rest? I'm going to this computer more than once if their rent is not worth it.

Any advice helps, thank you also if you know a cheap AP, with enough channels for something like this pLinks leasehold.