My name is jason and I am 12 years old. My dad,44,and I are setting up a N scale layout. The table we made is fit to the corner in my room. it is an L shaped table with arms that measure 80 in. long each. It measures 30 in. from the wall.On the outside edge theres a 4% grade that goes flush along the wall, goes up turns in the corner and goes down the other side. We made a styrofoam mountian in the corner over the turning track We are making it all hands off and are using Magna matic couplers/magnets. Any suggestions for building,bad brands or anything?Weve done HO but are totally new to N.