I've always done patterns that include the measurements for the sew and flip method. I think I'm going to have to research it and make up a golden rule or something that tells me what size squares and rectangles and such to use. Maybe if I have it written down on something I can use it for reference and make the pieces according to sew and flip but assemble the quilt according to her methods.
I have steered away from a lot of pretty Fons and Porter patterns as well because of their specialty rulers. We are on a fixed income and have 3 growing boys, one is disabled. I cash my change jug in once a year and buy all the batting I can and by small boxes of scraps and 1/4 yard pieces or FQs or remnants when there's a significant discount. I can't really invest in a ruler if it's just going to make the process harder. I'd rather spend my money on fabric and thread, but that's just me.