I have just picked up the lionel overland flyer train set for my 6YO grandson and me to set up around the Christmas tree. The set comes with a basic 40 x 60 loop and I think the curves are fast track 36. Looking for just a simple continuous run layout to go around the tree, like a double around with a x over or something, no switching just something we can let run. I would obviously like to just add on to what came with the train. And we want to keep small if possible 4’ x 6’ would be awesome. Thank you for reading.