This stuff isn't used much anymore. Therefor it isn't easy to find such gear.
Dutch soldiers mostly buy there own assault vest's or get issued one.
We also used this webbing in DPM but that isn't issued anymore, we now get assault vest's which are much better!
The assault vest everyone get's issued;
The backpack we get issued (depends on the unit, this is a standard version, but there is also a bigger and smaller version);