View To A Past (North Otago) Multi-Cache

The first co-ords should take you to the Oamaru lookout where there are several notice boards/plagues/signs etc; your task is to find the right ones to complete the co-ordinates     S 45 06.abc   E 170 58.def  . This will then lead you to the final location which lies within the Cape Wanbrow reserve.

A=  Gun Emplacement XX minutes( a= x+x-1 )while plague is missing use the 1st number on gun on rear a=?4-1-0.

B= Captain J Laird died 20th 19B0 b= 3rd digit

c=what year was the compass altar erected 19c0 c=3rd digit -2 

D=Dr Edward Shortland lived from 181x-189y d= x+y

E= The lookout was dedicated to Eric Straverson Stubbs on June 8th 196e e=4th digit -5

F= The South Pole is ? km away f=total of digits -2