Go go WMUTeach, sometimes we have to bow to the will of the fabric and the stash options.
With my Dragon Hoard project, I'm pretty pleased with how it is matching my mental image plus my fabric selections. There have been some changes and adjustments along the way -- I have learned more about working with panels (ie; don't trust them to be square). I do like the concept of using the crazy patch squares. I think it would maybe work better to make the crazy patch the same size as the dragon block and trimming it with the setting triangles. It would have been fun to have just a little bit more of the sashing fabric, but I sure used up what I had!
My supply of premade squares is dwindling pretty well. I still need to finish up the bottom blocks and the sides. But at this point each block is maybe 15 minutes and I do one each time I let the dogs out.