Reach 360: Managing multiple groups with internal charge back for use

Hi everyone, we're looking at using Reach 360 for several of our organizations that have LMS needs that are outside the scope of our existing company LMS.  We would then charge back these groups using some internal process for their actual use of the Reach 360 Active Learner seats.  Has anyone done something like that?  

Another alternative would be to split our current Team subscription into multiple Team subscriptions so that each Team could manage their own Reach 360 seats.  We consolidated purchase and renewal of Articulate 360 licenses for our company, but might reconsider that strategy to gain individual Team usage of Reach 360.  

Any advice from large companies on how they are making best use of Reach 360 for learners that fall outside the scope of the company LMS?