Agreed that the Liberal is a great drink but the Amer Picon (or substitutes) may be difficult to find outside of California. You could use both Torani Amer (only in Cali) or Amaro CioCiaro (found in many places I think) as a substitute for the Amer Picon. I like the Torani Amer better (although Cio Ciaro is supposed to be closer to the original Amer Picon). I did some testing and found that a 2:1 or 1:1 ratio (cannot remember) of Cio Ciaro to Regans Orange bitters was pretty close to Torani Amer but tasted better. So if you can find Amaro Cio Ciaro, I would suggest making a Liberal with that and extra orange bitters.
As for the Sazerac, yes, it is an awesome drink. Drink it now, drink it often!
The other drink I would recommend is the Boulevardier. I love this drink and you already have 2/3 of the ingredients. The other ingredient, Campari, is easy to find.