IDCS6 MAC OSX: trying to make a map to new spot script

Hello all.

I have a plethora of InDesign files that contain a custom-named spot color called PMS 295. So that the colour can be properly mapped using our RIP it needs to have the correct name "PANTONE 295 C" but the correctly renaming the source of the offending colour has the potential to affect other work. I'm after a script that will make the properly named colour and then map the PMS 295 colour to the correctly named colour.

For ONCE, I have tried to do this myself, and I have the first part sorted! I can add the colour to the document using the following snippet of code:

app.activeDocument.importAdobeSwatchbookSpotColor ("PANTONE 295 C");

But getting the ink manager to map PMS 295 to this newly added colour is doing my head in. Is this something that is possible to script?

Many thanks

Colly