I would touch base with DGCAM-Oman to see exactly what they will accept. I have seen JAA courses advertised in the states and Oz, do a search. The bridging course in Doha is currently costing the guys about 7,000 OMR at the moment for which they come away with nothing other than to say they have been there (not even a certificate). Sorry can't help you with the other figures, good luck.