74world, WilliamsF1,
I don't want to be a spoilsport, but 74's 'Option 2' does not exsist, as there is no connection between beeing an EU member state and beeing a JAA member state who has been recomended for mutual recognition of pilots licences. Sorry.
74 is absolutely right, though, regarding the Metro: All Swearingen/Fairhilds SA226/227's are SPA. They are now also classified as HPA (High Performance Aircraft), with the added upcoming requirements regarding HPA's.
You'll find the answers to most of your questions
here , in Subpart A, Appx 1 to JAR-FCL 1.005 (page 1-A-13) and in Subpart F, lots of relevant items.
Cheers, and good luck