I have a normal ball python, Hades, that I'm having trouble finding the appropriate size meal for him(her?). He weighs roughly 380 grams. I want to try feeding him a small rat, but the only problem is that I feel like his biggest part of his body is too small. Currently, he eats f/t large mice, but recently they're not giving him a bulge. Weaned rats would be my next option, but sadly they aren't available where I live and I really can't afford the shipping costs from online breeders.

He seems to be growing longer instead of wider and longer (if that makes sense?). He's my first snake and I want nothing but the best for him, just hit a dead end in trying to find an answer. With that being said, just looking for some options. Any help would be much appreciated, thanks.