First of all, YAY! I'm glad you found him/her.
Secondly, I would definitely go with a little bit smaller of a meal, and then work your way up back to the way you were feeding the snake. I would say 1 pinkie at a time right now, and then in 2 or 3 feedings, bump it up to double pinks again. After not eating for a month, you don't want to stress out it's digestive system by introducing too much prey. Just think of it like a regurge - start slow, and work your way up.