1.4 kg lifted by these puppies turned by these motors hooked up to this battery through these ESCs. It can barely take off at about 5 kg AUW, so I'm guessing the thrust peaks somewhere in the 50 N ballpark. It can hover at 15 amps and stay in the air for a little over 30 minutes.
for a quad, you need to pick one of the varables you have listed and go from there. So lets start with the airframe weight; this would be the finial wight. you want a motor/prop setup that can provide at lease 2x the thrust as the weight, more =better
for a copter of any sort the bigger the rotor disk the more thrust you can get, to a point.( just like in planes push forward to go down, pull back slightly to go up, and pull all the way back to go down)
airframe weight: as light as you can
motor thrust: as much as you can
propeller sizes: a simple static test at about 70% power and pick the one with the most thrust
battery type: Lipo
If you want to give a starting point of what you want for a finish product I could help you pick out some parts.