Just be aware of the impending rule change on the weight limits for aircraft to be considered for Part NCC or Part NCO. EASA will publish their decision on 15 July. Complex Aircraft below 5,700kgs may have to write the manuals under part NCO instead of NCC. Peter Magill at Infotech is very good. I have used him in the past. Another good company is Evers Consulting. They responded within 24 hours. Operators will have to comply by 25 August 2016.