Regarding the rudder and the tail wheel, the instructions show how to assemble the parts, what the instructions do not show is that you have to cut a groove under the rudder in order to have a functional mounted tail wheel, this was easy to do, the vertical and horizontal stabs were very easy to assemble, no surprises there, also it didn't take to much to align the horizontal stab with the wing.

Here is the before and after for the rudder