SLTlop's Number Crunchers Mystery Cache

We have been doing a lot of challenges and puzzle caches lately.  It's our turn to add a little piece of Team Lopez to the field of play. There is some nice Guiding and geocaching swag included, plus a toonie for the FTF.

Cache is not located at the posted co-ordinates!  You must solve the puzzle to reveal the real co-ordinates.

N 043 01.abc     W 081 03.def

A = W on a C

B = D in S W

C = E on Y H

D = N in a M S

E = S on a T

F = I in a regular B G
 

You can check your answers for this puzzle on GeoChecker.com.

Congratulations to Jakehound on the FTF!