Hello all, I've come to the decision that I'd like to make a start in O Gauge. I've had OO trainsets but never set up a layout . Now with the space available, I already have the baseboards built as well as a Pannier and a Parkside Toad kit to start off. I was wondering as this will be my first layout if 7mm is the right choice or if I should go with 4mm though I am enjoying the level of detail that can be achieved in 7mm. My layout measures 25ft x3ft, what type of scene could I create in this space? Perhaps a regional terminus, but that is yet to be decided. Any suggestions are welcome. Cheers!