You might also want to consider a "junior" hudson, they came in a number of flavors and you can get them cheap enough if you are patient. Mine didn't like fastrack switches but I had three in a row; I haven't had a chance to try it since I swapped my track plan around but I asked on here a couple times and no one else was having issues. The hudson jr is an 0-27 engine and will fit well with the PE.