The cache is sited somewhere on the old section of the B5030 which was closed when the new bypass was made.
The cordinates are for parking where you will find a gate with 9 letters written on it.
The letters are written down as they are read.
The letters are then traslated into numbers using the following logic code.
A=0....J=1....U=0....Z=5.
To obtain the final cache position solve the following.
N 52 54.(F+H+T)(R)(T)
W 001 52.(H-M)(P+T)(H+R)
You can check your answers for this puzzle on Geochecker.com.