Try the Fukutoshin Line from Shinjuku. The name of the train line will change, but you can stay right on the same train all the way to Yokohama. Double check with Google Maps. Get off at Minatomirai Station for Cup of Noodles Museum.

Not at all. Maybe 15-20 minute walk at the most. An even closer station is Bashamichi Station on the Minatomirai Line.

Walk it. its not far.

You buy can few cups for sure and please remember to bring enough coins for the vendor machine

You can purchase the tickets to design the cups at the museum. You will need to make a reservation and pay online if you want to make the ramen noodles from scratch experience.

Open lid, pour in just boiled water to the mark. Wait 3 minutes until cooler. Eat at your own pace.

You can visit their website and you will able to find out . They usually provide 3 months calendar. If you plan to visit in Jan , you may check it out next month onwards .

Hi, going from memory so apologies if it's not great info or too clear, sorry in advance. There's a few points of interest within close walking distance. There's World Porters shopping centre where you can also pick up something to eat (lots of choices). Red Brick Warehouse. As said above there's the big wheel and an amusement park. Cosmoworld i think it's called. Landmark plaza is also a handy shopping and food area. Taking a stroll to Chinatown and even a little longer the bay stars arena baseball stadium (closer to Kannai station if i remember right). There's also a couple of parks to relax in around Sakuragicho and on the other side of the train station there's a zoo. If you're visiting with kids then there's the Anpanman museum about 10-15 mins walk (depends how slow you walk) from the cup noodle museum. That from memory is right in between Sakuragicho and Yokohama stations i think. Hope that helped.

Yes

Depends how much you want to wander around the areas, look at all the packaging and designs carefully and if you want to watch all the videos. Also if you want to create your own cup noodle. Can be anything from 25-30mins if powering through to 90-100mins hours if taking it all in and creating your own item I'd say from memory. Hope it helps.