Maybe we could do a commercial Skylab ?

Since the launcher exists, why not a single module, 100-ton class
commercial station.. ?

No costly assembly and with a 100 mass maybe you can keep the
consumable servicing to a minimum. Maybe build with ample design
margins and simple construction techniques.

Well : question, with the 125-t class launcher, assuming the Govt
builds two a year for its Moon missions, what else could be done ?