you'll do just fine, i'm sure.
you can use the same method to assemble the quilt as though it was a big log cabin block. just start in the center and add the rows as you go around instead of one under the other. it just hit me - how cool would it look if you chose different fabrics for the "logs" on the back just as you would if you were making a block? reversible quilt!!!
i love 2-fers
:P