RE: how to make a track
You need a descent size space, and it would be good to have a good wheel barrow and some shovels. A tiller would be ideal and make things way easier but is not necessary. Especially if you use a load of topsoil. Measure the area your working with, figure out how wide/long you want your lanes, jump layouts, etc. Put a layout on paper for reference then go to work with the hand tools and some friends!!