Hey,
I've got experience with working on CUDA, and am reasonable comfortable in writing good quality (correct + performance + clean) code.
Product prices calculation should be extremely easily to port over to CUDA, even if they depend on each other, I'd be excited to think of a working and efficient model of data sharing.
Please leave me a message if you want to know more about me, or are interested in me taking this up. I would love to work on it, and complete it.