Cache is located at South 32 3A.BCD. East 149 EF.GHI
A= Number of chimneys on main building. Take 3
Now go to the remaining waypoints to find the missing co ordinates.
Cache will be a simple park and grab.
The total digits of the south adds up to 29. The total digits of the east add up to 35. So if it was East 149 41.231 the digits add up to 25.