Thanks Guys. Really appreciate your help!

Hi, I'm new to all this.  We set up a large Christmas display at work every year (we are a non-profit that helps kids and adults with disabilities) and this year we want to add a train. Just bought the "Night Before Chrilstmas" set but we want to run it around the top of the lobby...it's about 50 feet around.  Not sure what track to buy...does it matter the longer distance?...brass....steel...? It will always be inside and we'll store it in an airconditioned storage unit thru the summer, so hopefully it wont rust.  Also, help with power...do we need a larger transformer than what comes with the train set? What about using 2 engines??? will that help with the longer distance...?  Thank you for any and all help you can give.  Merry Christmas!