In JAA land you can only get an IR on a multi-engine aircraft unless you do it on Bristow's 206 which is the only aircraft that is single engine Ir certified.SPIR stands for single pilot instrument rating your other option is MPIR wich is multi pilot instrument rating.To work offshore you need one or the other.The price of the Bristow's single engine IR is not that much cheaper then any of the other schools Multi engine single pilot IR's usually done on a twin squirell or Agusta 109 as with the Bristow option you still have to do a multi engine upgrade.You are looking at spending £40,000 Stg to get a Multi engine single pilot instrument rating which would then attract the attention of the north sea operators if you were looking for a job.With 400 hours and no turbine time you have absolutely no chance of getting a corporate job at home.