I posted earlier in this thread about using a neutral/warm icc profile for soft proofing and toning IR images. I've created a few more profiles for neutral, warm, cool, and selenium tones. They are available for download as a
zip archive for those that want to experiment. You can use them for soft proofing in either LR or CS6 by putting the profiles in your Colorsync>Profiles folder where they can be accessed. To create a toned image just open the image in CS6 and use Convert to profile with the absolute color rendering option. You can also create blends by stacking toned images in layers and adjusting layer opacity to get the tone blend you want. Sample images below using the pure tone profiles. Here is a
dropbox image stack psd file created from an IR image and toned variants (warning LARGE file download).