I'm afraid i don't know anything about the vet school paying for EMS either, didn't think it was something they did.
As for pay on EMS, that's up to the person you are working for, some people pay in money, others in accomodation and lots of food, others in both. It depends on them and to go expecting to be paid is not usually a good idea. As Hawk has said too, usually for pre-clinical work they can put you up in the farm somewhere. Either that or like my placements for this summer, they're near home anyway.
Other than that no help here either, it is much tougher for graduates as they have to pay so much more. Good luck,
Dan