Looks as though most of the work is done, the cutting, the lay-out. The quick & easy part is all you have. Depending on your hand, all you need do is assemble and press. What did you plan do do for quilting? Go ahead, knock out the piecing so you'll have time to get the quilting done too.
Remember to allow time for a "flat tire," as my daddy always said. If the time is programmed into the project, and you don't use it, you have time to spare. If a problem comes along, you have time to deal with it and finish on time.