to answer your questions
1.GECAT are no longer a aproved TRTO for ryanair only CAE and SAS,also doing TR in HOUSE.
2.You wont get a JAA aproved type rating in the US that you can use,FAA licence FAA type rating.
3.You need 100 hours on type to join ryanair if you already have bought a type rating they will not take you otherwise
I know its brief but hope this answers the questions
B