Hi Hrannar,
I usually do that sort of move in Photoshop with a Curves Adjustment Layer, if they're not too far off. You grab the curve for R,B or G and drag it down a little to reduce excessive cast in that range. If the cast is comparable across many shots, and you're just trying to get in the ballpark, I don't see why you couldn't build a Photoshop Action to do it... I wouldn't be surprised if this much heavy processing on a repetitive basis caused some freeze-ups, tho...Those are some damn big files!
If you're not familiar with Actions, do a little investigation and learn how to build them. It's really pretty easy and will save you tons of time for any repetitive tasks... I have actions that step down my images from 39mp to web size in 10% increments to retain maximum clarity and Photoshop does all the work while I go warm up my coffee...
Hope this Helps,
Chris