Oh man, as a guy who had two hand surgeries last year, I wish you luck! Mine went as well as can be expected, but were still weird and not fun.
My wife has just started training for a century at the end of June in the Virginia Eastern shore (also very flat), and I think we’re doing the Seagull Century in September in Salisbury - all contingent on me surviving this ride! Once your wrist is recuperated, I hope you can get on the bike soon!