Liquid smoke is something very common here. You can buy it in most grocery stores, even the smaller ones. For those who don't cook out side it still gives the flavor of if it had been. Nothing replaces the real deal but this is as close as you come without cooking outside. It's never to be used as a condiment but rather as a cooking ingredient or as part of a marinade.
On the molasses, again the recipe is what you want to make, not what is written down as a recipe. Your wallet, your time, your taste buds. Whatever you believe suits your tastes is always the standard.