Just revive the Saturn V booster and strap six SRB motors around it.
Neither one have failed.
You would need 1 shot to put up a fully functional space station.
> Just revive the Saturn V booster
Massively impractical. Many of the materials used are *very* obsolete; most of the actual mechanisms used within it are simply nonexistant (many of the vendors have long since gone out of business); and the manufacturing tools and techniques are long gone. Plus, the F-1s are quite underwhelming in terms of performance, and would need to be completely re-developed. Easier to start from scratch or go with Shuttle derived.