⬢We are done here!
Before you move on, let's recap:
⬢Throw away all the plastic parts, keep only the cable-holder.
⬢Keep both fans, hotend (with replaced PTFE), F.I.N.D.A. sensor, Nylon filament and the X-axis belt.
⬢Keep the motor and both Bondtech gears including bearings and the shaft.
⬢Throw away the filament sensor with the cable, we will use a new one.
⬢Fasteners are included in the upgrade kit, you can use these as a spare.