Since the blocks are basically 9 patch, what size of a quilt are you planning? Remember to figure 2 patch for each domino. And what size are you most comfortable with for a 9 patch? a finished 9" or a finished 6" (easiest sizes to compute). The picture looks like at least 12 blocks by 9 blocks which would make a very large top if you use 9" blocks. (I am figuring a half size for the border and 1" sashings.) With 6" blocks, you are still looking at a roughly 70" x 90" top. Please keep us updated on what you decide to do - looks like a fun project.