For a while now we have been contemplating constructing a garden railroad. We are thinking we will go with a G gauge line. Now I know a good bit about HO,N, and O but I have never dealt with G before. We are in the Philadelphia area so we need something that withstand our temperature changes. Also given our weather how would we power the train? Do we wire the track or is there so way to hook a battery to the locomotive? Also what is a good starter set?