s.t's Puzzle Cache #8: Triskaidekaphobia Mystery Cache

About this geocaching series:

Since there is a serious shortage of puzzle caches in the Bryan/College Station area, I have put together a series of them, each with a different theme and unique puzzles to solve. They also have varying levels of difficulty, but I have designed the puzzles to be solvable without needing extensive specialized knowledge. Please refrain from posting in your logs any hints to either the puzzles or the actual cache locations. However, I do encourage you to work with others. I will not post any extra hints, but if you keep having trouble after repeated attempts at solving them, feel free to send me a message and I can point you in the right direction. I want these to be challenging but still fun to do. So good luck and happy trails.

THE CACHE IS NOT AT THE POSTED COORDINATES!

To access the puzzle click the following link: TRISKAIDEKAPHOBIA PUZZLE

Click on more, then fullscreen to increase the size of the presentation. You can navigate around the canvas using the arrows or by point-n-click with the mouse, using the scroll wheel to zoom.

I have provided a worksheet to help with solving the puzzles which can be found here: TRISKAIDEKAPHOBIA WORKSHEET

Once you have solved the puzzles and filled out the worksheet, you must use the values in the following equations to obtain the true coordinates:

North
(STAR) + (OLIVE BRANCH) + (PYRAMID) + (MOTTO) + (SUN) + (QUIVER) - 11902 = ?????
N 30 _ _._ _ _

West
(STAR) + (OLIVE BRANCH) + (PYRAMID) + (MOTTO) + (SUN) + (QUIVER) - 34947 = ?????
W 096 _ _._ _ _