SpaceX doesn't tend to share that kind of information, so we may never know exactly. Plus, it's R&D they expect will amortize over the operational life of Stars

SpaceX doesn't tend to share that kind of information, so we may never know exactly. Plus, it's R&D they expect will amortize over the operational life of Starship rather than infrastructure being built for a narrow set of missions that I can't see resulting in much future reuse.