My family and I will soon be embarking on a 10-day trip to Japan. We will primarily be in the Tokyo area although we will be taking a couple of shorter trips up to Sendai and down to Nagoya. We'll be traveling with a four-year-old so I figure I'm going to be on-the-go quite a bit and not have much time for carefully arranged shots. I have a GH2. Do you think I'll be pretty well covered with the 14-140mm, the 20mm f/1.7, and the Oly 45mm f/1.8? I'm planning on leaving the 100-300mm home, as well as all of my legacy glass. My son is a train buff, so I figure I'm going to be taking a lot of candid family portraits in and around trains. We'll also be visiting several train museums and riding on a steam locomotive in some wild countryside. Probably I'll be taking a significant amount of video, and bringing a monopod as well as my external flash (Metz 50 AF-1).