Converting an ATPL
I went through this process several years ago. I have a Canadian ATPL and converted to FAA with 73B type rating. Then came back to Canada, presented the course material to Canada's Misery of Transport and was give a B73B type rating on my Canadian License.
On the flip side, I presented my credentials to Irish MOT but didn't have any current time on type. I was told that I would have to complete a full ground course. I would be given credit for they type rating exam and the aural morse code exam. Based on the cost, I decided not to pursue this option.
I am now acting as a skipper on a 737, and am wondering with 500+ hours of command time, if my reception at the Irish MOT would be any different should I wish to convert to an ATPL.
Incidently, I have a mate here in Canada who emmigrated to Canada approximately seven years ago from South Africa. He held a South African ATPL with 747 type rating. He wrote the Canadian Air Regulations exam, completed a Multi-Engine Instrument exam and now holds a Canadian ATPL. He is employed as a skipper on the 737-NG now. Hope this is of some encouragement.
Cheers,
Jim Guillaume