Well, the Fencibles have a replay of your Shiloh scenario on tap for this weekend. We've played it some 5 times or so over the years but last played it back in 2017. It's a cracking game and a couple of our newer members haven't played it before. If everyone shows up I'll game master.
I have played other Shiloh scenarios in other rules where the Union side can relax after the first couple turns. This one is a desperate affair from the start, always gives an exciting game. Plus I get to put my scratch built gunboat on the table. I made a canvas mat for this scenario.