War in the Pocket was the only Gundam series where I cried at the end! The series was short and I feel that there wasn't enough mecha action but the human story around this series really gave me that tingling feeling.
RX-78NT-1 Alex is the Gundam that the story revolves around which we dont get to see too much of. The GFF version is a good representation but be prepared for typical GFF properties - the left leg falls off easily and so does the leg armor. This can be fixed using the fixing loose joints though.