Ahhh, that's better. Manageable Quikrete (the bags are still heavy though!) and a few make shift fire bricks for the overhang sections. Not ideal, so really try to get the correct amount of fire brick in the first place.
With supplies on hand, we finally got to get down to business. The refractory cementing was actually pretty easy. In the instructions, the consistency of this product was described as "peanut butter-like" and it was! It was smooth and easy to spread on the concrete ring and the sides of the brick. It was a little trickier to get the cement between the bricks, but nothing compared to our experience with the mortar.