monk is right, do some legwork and just sketch up something that will work for you. Someone could give you step by step instructions for the sickest setup in the world and it could be a waste of time because everyone's backyard is different. changes in pitch/slope, space available, obstacles to build around, and desired features.
I think the best thing to do is browse through the "Post a pic of your dropin". Then just save all the dropin pictures that you think will work best for you.