Sharon and I spoke tonight, and she was extremely helpful. She had previously done the Amazon Star pattern by Judy Neimeyer, which had gone well, and she is in the middle of the Bali Wedding Star. She is a more experienced sewer/quilter than I am, but had to put the quilt aside for a bit while she helped her daughter get married - she actually made the bridesmaids' dresses and her own Mother of the Bride dress - WOW! So her time on the king-sized quilt was limited, and she had run into a problem with too many arcs and not enough of the pie shaped pieces. She bought more foundation pieces for additional pie pieces, so she'll get getting back to the quilt after a little time off.
She said that Judy does a really clear job of explaining the patterns, especially what side of the foundation paper to sew on (since you have to think backwards on how to set the units), and Judy also gives instructions on how to keep all of the various fabrics and pieces organized. She said that the 2 1/2" strips should work, but she is using regular yardage and FQs, and she was not prewashing her fabric. And that the portions of the star section should have fabrics that contrast well with the black part, in order to see the difference between the two fabrics in the stars points.
So I think I'm going to go for it, but I need a little time to figure things out first. I'd prefer to prewash, so I'm going to buy yardage and FQ's too, and then I'll be sure of having enough fudge room when sewing (and real fudge nearby!) I'm also going to reduce the number of arcs needed by first making "only" a queen sized quilt, and then also changing the pattern a little. I want to eliminate the second row of rings inside the outer border, so there is a blank area for Flying Geese (like Bali Flowers for my Wedding Quilt), or maybe a little applique. Fewer arcs will be less intimidating and timeconsuming. And I'll definitely sign up for a class at a shop that has the Judy Neimeyer certified teacher showing the process and tricks, at least to get started. I don't have a deadline, so I can do a little each month, even if it does take three years.
Hope this helps others, and thanks so much Sharon for all your assistance! I really enjoyed our visit!
Sue