That will work fine.
It usually gets delivered in 3 days or so, just bubble some up with a little molasses (perhaps 1tsp/gallon since some is already in your mix), wet the mix down and mix it up well.
It helps if you can churn the mix every few days/week while it is cooking. A month will be perfect, just don't let it dry out.
You will probably get something that looks like mold growing on it. That will be the BB and a good thing. Might not get it. It will smell, but not bad. If it starts to stink, nasty smell, it's too wet and you will need to dump it out and let it dry some.
Not throw it away! I mean dump it out of the container and spread it around to dry out some. For my outside container, I drill a few small holes in the bottom in case I add too much water. You want it moist, but not sopping wet and not so wet that there is standing water at the bottom of the container it's in. That's what will start to stink and rot.
Wet