My Riley & Bailey were born the same day!! I had Riley neutered in November.
I bought a onsie, but only used it at night when I couldn't keep an eye on him..... I didn't have to do the e-collar or onsie during the day.... It was the hardest thing though trying to keep him from running and jumping....and he was up and going the next day.
Sending good vibes your way for a speedy recovery!!