You should have collected information as walked the circuit. Where to get it was detailed on #1, also on each cache page for individual info. If you didn't collect the information you can do the walk again ;-)
A - How many diagonals in the nearest gates?
B - How many gates are there?
C - How many letters on gate leading in to the field?
D - How many staples are holding the wire fencing?
E - How many nails on top of the nearest post?
F The information is on the cache container.
G - How many letters in gate maker's name?
H There is a metal fence close to the cache, how many horizontal rails?
J - How many visible nails on the cache?
K - Close to the cache is a wooden fence with stone fence posts. How many holes in each post?
M - How many gold painted screwheads on the door and hinges?
N - How many words in the top line?
N 53 BA. KDG W001.2N G-B (C+E+F+H+J+M)