Similar main launch craft to the Shuttle IIc concept: crew cabin at the front with LES, cargo bay behind it. I would also have some fuel for the main engines on board for higher altitude aborts, and be able to glide to various runways if need be. Main engines can be placed in cargo bay and jet engines mounted in their place to facilitate orbiter transportation. Lunar rated heat shielding so it can launch things directly to the Moon or bring people directly to the Moon
Cargo shuttle with higher cargo capacity and no crew for when you need to bring a heavy payload.
Also, fully reusable, main engine switching between tanks and shuttles for shorter turnaround time while being able to overhaul main engines between flights, and no SRBs.