The only development it needs is a cone like the SLS LVSA (or SLS Block 1B USA) that goes from 9m to 5m diameter. SpaceX can probably have a flight test prototype welded up by the middle of next week.

NASA has changed Artemis III into a 2027 LEO (low earth orbit) rendezvous mission. There is no orbital refueling is needed at all by SpaceX. Block 1B – the planned upgrade to the SLS rocket – is dead.

I would have. SLS 1B and SLS 2 are not required for landing on the moon. Most of the cost of SLS has been development not production. Yes SLS Block 1 would be expensive and slow but no so expensive ...

NASA’s Space Launch System (SLS) rocket with the Orion spacecraft aboard is seen atop the mobile launcher at Launch Pad 39B, Friday, Nov. 11, 2022, at NASA’s Kennedy Space Center in Florida.