Quark 6 Replace Colour

Hi, can anyone point me in the right direction.

I have 300 quark documents all with a spot colour specified “SPOT_ADDRESS”, the CMYK split is C3 M89 0 0.

Unfortunatley i need to make the CMYK split 0 0 0 K100 as not all the documents will be CMYK+SPOT_ADDRESS, hence some will be run as CMYK with the SPOT_ADDRESS colour being flattened into the K plate.

Is there a script I can run or do i have to go through every doc individually and change the colour splits.

Any advice is apprieciated as I am new to this scripting malarky.

On another point is there a script to import different pdf’s/images into quark?