Camp Freddie
Yes you can take off from ABZ with 150m RVR, this is due to the runway lighting being of a certain standard and RVR info being available. Overcast @100ft does not prevent this take-off, even though the ILS mimima is 200ft/500m RVR.
However, you must have an alternate, within 1hr flying time of departure airfield, where the weather is 'acceptable'.
Worst case scenario, just after CDP, enter IMC, engine fails, you have a 1hr transit single engine to alternate.
Hope this explains it.