Hi Copter Cody
To say you are dreaming would be unfair and would be too discouraging, however, it is going to be difficult to become an SAR pilot in civilan life.
The avenues open to you are probably these:
Go Police or EMS and end up joining a unit which has a SAR role
Go the military route
Join CHC or Bristow as a co-pilot and try to get transferred to a SAR unit. Bristow have SAR units around the UK and CHC have a SAR unit in Ireland.
You are not dreaming but it will be difficult and will take some years to achieve what you want.
LE