Hey Half-Pint,
If you are in your mid twenties, you should have no problem getting in as a S/O. What my advice would be is to e-mail HR or Flight Deck department and check with them. I do not want to give you "best guess" answers. But note that you will be bonded for 4 yrs coz you do not have an airbus type rating. PM me if you want any other info...
Regards,
wjp