I fiddled with this pattern big time and wanted to detail all my changes and process.
I used the 32DDD as a base, and added 2.75" to the band piece (for a total of 5.5" in band circumference). I also split the lower cup and added 0.25" to each side of the split (0.5" total).
My lace isn't galloon (the stuff with the nice border), it's yardage, so I needed to do something to finish off the top of the cup. I added a 0.25" seam allowance to the top cup piece, and used 0.25" elastic to finish the top of the cup.
The reason I added the 0.25" seam allowance was because that was what I would lose in attaching and folding down the elastic.
I applied the elastic by laying the top cup piece and elastic both right side up, and zigzagging down the top edge. I then turned the elastic to the wrong side and zigzagged it in place. Dammnnn this looks great for very little effort!
Here's the top cup piece after the first zigzag -
And here it is after being zigzagged in place -
My zigzag was set at 2.0mm long and 2.5mm wide on my machine and I think it looks good.
You may be wondering what the orange sticker dots are all about...I use them to denote the 'right side' of the fabric.