Thx but I'm good to go with mine.You may want to be cautious about the crockpot. Many inverters specifically warn against a resistive load being applied, i.e. something with a heating element. Not quite sure whether a crockpot is in that category, but a toaster is.
It is interesting the have a warning because a resistive load should be the simplest load for an inverter to handle since the load and the voltage are in phase. It is usually a large and steady draw but a 1200 watt toaster is a 1200 watt load so as along as the inverter is rated for the load there should be no problem.
Inductive and capacitive loads are a bit more complex.