In the U.S. for a helo certified for SPIFR
in current production, you'd be looking at something like an EC135, A109, B429 etc. Starting point around $7 million U.S. There are a handful of B206's and B407's that were approved for IFR on a case by case basis many years ago, but
AFAIK, these were not in series production, and the FAA is no longer granting these special approvals.