Olofsfors Ironworks - East Bonus Mystery Cache

This is a bonus cache for the Adventure Labs Olofsfors Ironworks - East.

There is another Adventure Labs in the area, Olofsfors Ironworks - West (with bonus GC8RBQH).

It's best to start with east (and bonus) before doing west.

Once you've done all the steps, just add all the numbers together (A+B+C+D+E) and you'll get a 4-digit number.
Enter that into certitude to get the final coordinates.

You can validate your puzzle solution with certitude.