Ladies and Gentlemen
The future choice for SAR will be the AW 139. It has everything you want in bucket loads. Having flown the 412 [in the SAR role] I would, now, only look to the future and think about the 139.
The 412 was a good old bus but you don't have to accept a limited OEI capability [if at all]. You don't have to accept a cramped cabin. You can carry more than 6 people in the back and you can still have 2 hrs fuel and be OEI [depending on conditions obviously].
The future is bright and it has 139 all over it!