All

I play solo in restaurants. I have backing tracks and play my guitar over them

I'm trying to reduce the amount of gear I am slugging around

My thought was to buy an iPad, run my BIAB backing tracks with the Garage Band that comes with the iPad, and use one of those apps for iPad that is an effects processor

So all I would need is my:
Guitar
Adaptor to plug guitar into iPad
iPad with BIAB and Garage band in it
Mixer
PA

Does that sound like it would work?