I cannot work within a pre-set time frame; I have chronic health issues that take a big bite out of my sewing time. More importantly, I LOATHE working for someone else, using their guidelines or supplies or accepting their criticism; I can't & won't do it.
If I made quilts of my own choosing, using fabrics of my own choosing, etc., and then put the finished quilt for sale, that is less obviously working for someone else, but would still leave me vulnerable for negative comments and/or quilt rejection; I don't take criticism or rejection very well.
If I was much younger & healthier & gifted & produced works of art that (a) I loved creating and (b) were in great demand and (c) made huge amounts of $$$ for me, that would be a whole different situation.