I can give you a chimchar as well, should be finished by tonight with both the curse/SR and a Naive chimchar with SR if you'd like. Both would be 4th gen.
EDIT: BTW do you care if its just marshstomp and not a swampert? If it matters I'll Rare Candy it but Marshstomp is easier.
EDIT 2: Do IV's matter on the Chimchar? Or Gender?