The cache coordinates can be solved by the distances to three reference points mentioned below. Distance from cache to 'Gabriel seventeen' is 35.282 km. Distance from cache to reference point 2 is 6.869 km. Distance from cache to reference point 3 is N.7492 km. By car the average distance to the original reference points was approximately 64 km, but you may not need to visit any of the current reference points in order to find out the final coordinates! (If you don't want to...)
Checker for reference point 3 - not for the cache itself
It is not recommended to try brute forcing with only two known reference points, if they possess "bad geometry".