The transition to 6G presents many barriers to be overcome, as well as opportunities for innovation. The integration of Network Intelligence (NI) is pivotal in optimizing network performance, enhancing security, and improving resource allocation. The ORIGAMI project identifies 8 critical barriers towards 6G deployment, and proposes both architectural and NI innovations to overcome them. This paper discusses experimentation with one use-case that implements one such architectural innovation - namely, the Global Operator Model that leverages the Global Service-Based Architecture (GSBA). In particular, we focus on the use of the 6G-SANDBOX infrastructure to allow for proof-of-concept implementations of the GSBA. Overall, this paper serves as an example of how ORIGAMI's approach to innovation benefits from state-of-the-art experimental platforms available via the 6G-SANDBOX project - thus highlighting the importance of joint architecture design and experimentation efforts.