This letterbox series is designed to be very similar to those that were traditionally created in the beginning of the Letterbox hobby.
The posted coordinates are not where the letterbox is located. Using the degrees and bearing noted in each description the final will be located there. Each letterbox is a film canister with a log and a small letterbox stamp in a baggie. Please leave the stamp with the paper log to keep the integrity of the letterbox.
Doing these letterox in the field will have its challenges but very doable. The DT rating is often a little higher if the the distance to project is further. Keep that in mind when hunting the cache series.
To find the final location of this letterbox from the virtual coordinates go 87.5 feet bearing 346 degrees to where the final hide is located. BYOP
You can check your coordinates for this puzzle on GeoChecker.com.