I am spending a year getting ready to do what you want.

First I researched because I needed a sound system.

I spent hours, hundreds of hours. I had speakers on poles. Make that 4 trips in (I'm just one guy with mobility issues). Then the amp. It's heavy enough, I have a powered Mixer so that's one hand and 30 pounds. And the briefcase with cables in the other. Next the keyboard and stand. Then the mic stand. And binders of music. (I was not using the computer at gigs at this point.)
TC
So we had a big anti-Bose thread here a few years back, might be 10 years. But someone (Mac?) started a thread about a guy playing and walking in with stuff, click click click Bob's yer uncle and it sounded good. I researched more and had to drive to Toronto with my mp3 player and a backing track. Bought a Bose L1 Model 2 with the Tonematch thing.

I found out after 3 months that I could sing, and do it on key. So I got a
TC -Helicon voicelive and figured out how to send chords from band in a box to it and turned it into a harmony section. Then I realized my mic was picking up to much stuff so back to the net, went to a couple of stores and ordered the Audix OM5 mic. Nice mic, you can whack the side and hear almost nothing, and you have to be almost on top of it to make it pick up your voice, so no feedback.

Now I'm still not out and about with a computer, but I can jack my midi from the keyboard to the voicebox and harmonize based on my playing. My Bose has a bass bin so, I trip for the first 3 parts, second the bass bin and the cable briefcase with some music in there, next the keyboard and stand. The bose takes less than 5 minutes to setup.

In the future I'm adding a computer into the mix, but I'm really busy with brass band until 15 April, and then a weeks vacation, and then...back to the sets.

John Conley
Musica est vita