Good luck but you wont need it!
Sophie was sat up in her bumbo chair only a few hours after her surgery and the following day was rolling around on her stomach.
Just remember that diet may need adjusting for a few months as his body adapts. He may struggle swallowing most things but this will improve.
It took sophie nearly a year to learn to burp after hers! Everyone is so different though and depends how tight the fundo is. Best thing ever though and any chest problems should soon start to reduce dramatically.
xx