I have this Ender 3 V2 3D printer for sale.
I have upgraded the extruder to dual gear extruder, and the magnetic build plate.
The whole thing work as-is, but you'll need to calibrate for your own setting so you'll need to have knowledge of 3D printing or at least know how to tune your printer, I can't give you the setting to you so you can try the default setting in cura.