if you have space, tie a rope to a car, then pass the other end around the first post of the rail and hold onto that end, then drive the car away, and it'll give you a good straight tow in.
yeah salt your inrun, and get a tow in by a car, you may have to thread the rope around the rail or something but i guarantee theres a way. post a pic and we could def tell you a way to do it