Be careful
Dani, Dani, Dani .... be careful .... read the contributions on the various Ryanair threads. If you pay for anything up front, the chances of the contract you expect appearing is close to zero. You never see the real contract until they have you in their grip and you have debts.
In any case, enforcing a Ryanair contract is not easy. Think about all the people who, for example, lost around £1,000 per month because an arbitrary change to pensions was made without negotiation. What the contract said was irrelevant. What Ryanair did was very relevant.