Michael, feel free to reach out - I did a three night trip up there a couple months ago (see Louisville and Bardstown Bourbon Trip)
I do think one night in Bardstown is worthwhile given the concentration of distilleries there (could say the same for Lexington, but we didn’t get over that way on this trip). Must do’s from my perspective - the Bar at Willett for a meal, library tasting at Bardstown Bourbon Co if you can get it (or simply go the bar there and pick out a few from the extensive list, but the experience is great if you can do the formal tasting), and bar hopping in Louisville (places like Neat and Silver Dollar).