ROBS experience with a healthcare acquisition

We are looking at the possibility of using the ROBS program to acquire a healthcare business. The problem with a healthcare business acquisition is that it typically requires a stock purchase because the EIN of the business is linked to all of the healthcare contracts.
Does anyone have experience executing a ROBS and allowing the ROBS C-Corp to acquire the assets of the business, and then having the existing business continue under the ownership of the new owner providing services to the C-Corp effectively as a subservient corporation?