Heliservices IR training, for those with AS355 on licence already, costs about £20k plus vat I believe. You'd be lucky to get booked this year though from what I hear. They get many calls for the course and if anyone cancelled, I would assume there are people already waiting.
The sim is an FNPT2 so you can do 40 hours on it and 10 on the squirrel. It's set up as a Jet Ranger right now.
If you didn't have the as355 rating already, maybe add another 10k on top? I never like to ask exact prices. Too scary.