jimbaba, ... if Ryanair is your target you would have no hope of guaranteeing anything.
In general terms, the main problem you currently have is that you will have a series of assumptions based on U.S. experience that do not translate beyond the borders of the U.S. so you are likely to "assume" certain things that will turn out to be incorrect. LOTs of research required.
Ryanair has not been particularly successful in attracting U.S. pilots, most of whom seem to have been able to spot their funny ways. Reading this thread, alone, should alert you to the need for caution. If you are in ALPA I suggest you get in contact with them as I heard one of their people speak about Ryanair in a very informed manner a few months ago.