There is a lot to consider here when it comes to PII, even for a small amount. In highly regulated industries such as government or banking, even a tiny amount of PII can result in significant penalty from regulatory bodies and auditors. You could "segment-out" the data, but it is still there and only glosses-over the underlying PII exposure.
That being said, there's no harm in getting a quote from Adobe Engineering, based on an initial audit conducted by your team. If you can give Adobe an idea of the impact of the PII in your report suite(s), they can give you an accurate quote. We have had to take this route before - and even this process was lengthy as it requires validation in a temporary report suite before Adobe "commits" the modifications.
Hope that helps a bit.