What Phil said ^.
There's tons of options, and seems this question is asked on a weekly basis. I have not yet seen anything from NAMM 2016 that would shake up the status quo, but that only means that I've not seen it yet, and not that it's not out there...
Seems to me that the dividing line of price vs. features comes when you want to go ALL battery power vs. A/C power.
With A/C power, your quest will find many options that are less expensive with better features than if you are restricted to ONLY battery power.
You also need to figure out how many cases of gear you want to haul in and out for setup and breakdown, and how much time you will have before and after each performance. THIS aside from cost, might help you to focus on which options you need to prioritize.
Were it me, and A/C was no problem, I'd likely be looking at a pair of Kustom PA-50 powered speakers and a mixer of something like a Mackie 1202 or 1404 (or similar Peavey or Behringer mixer), and one of those three-packs of Behringer 8500 dynamic mics, with stands and monoprice cables, as well as a couple of active direct boxes that have ground lift and impedance adjustment.
Right there you are probably looking at a minimum of $500-600.
A wireless mic or instrument transmitter/receiver combo, of any quality (Electro-Voice,Samson, Shure, Nady, Sennheiser, AKG) in UHF band with multichannel wireless capability (a must if you encounter interference in the performance venue) is going to start at just-under $200 each.
Sure, you can go on aliexpress or ebay and get a $10 VHF single-channel wireless kit from some unknown Asian maker, but after trying to use it for 10 mins at home, I guarantee you that you will throw it right into the trash if you dont smash it with a hammer first out of frustration.
'Buy cheap, buy twice' is never more important to heed for gear that is intended/expected to be road-worthy for gigging.