Skerdi, the 5000UE is fine, especially if you're going to be installing it behind the walls; that's what it's rated for. The outer jacket is there to reduce the amount of HCL gas and acid given off by the PVC covering on the wire in case of fire. If you're not going behind the walls, using the regular 16ga lampcord without the outer jacket is fine.

Unless the type of banana plugs you get require soldering, no tools are necessary to put the wire in.

-----------------------------------

Enjoy the music, not the equipment.