[ranger207]

Getting to the Mun manually isn't too hard once you know what you're doing. Get to a low orbit, then thrust prograde when the Mun comes over the horizon. Keep an eye on your remaining delta-v (or do the math beforehand and watch your stopwatch) and you should come pretty close. Make sure your Munar orbit is counterclockwise and returning is just prograde thrust again.

For a more immersive experience, install the RasterPropMonitor mod to get interactable IVA displays. Add a compatible camera mod and Docking Port Alignment Indicator and you can even do a multi-craft Apollo style mission entirely from the cockpit.