The sill is the issue...and the jamb will be stepped out on the outside so the doors will not even fit. The opening on the jamb will be to narrow.
I saw one door just installed backwards, and some vinyl trim installed on the outside of the door. Only problem is, you can just pop the hinge pins and get into the house.
Outswing doors are expensive because they are made to work in a driving rain, freeze thaw cycles and high winds. My advice, if you need an outswing door, buy an outswing door. It will be well worth it to have less headaches.