Spoonflower.com is a website where you can design your own fabric or buy fabric from other independent designers. It can be printed on just about any type of fabric: silk, cotton, linen, even poly nylon spandex a/k/a swimsuit fabric. I searched for "redoute rose" and found a designer who had a print that was somewhere in between these two D&G prints and as close to exact as I could hope.
Redoute Rose Print Fabric on Spoonflower by Peacoquettedesigns
To put my suit together I used a Beverly Johnson Pin Up Girls Pattern for the top and drafted my own bottoms with the knowledge gained from Beverly Johnson's craftsy class - Make your own panties.
Here's how my knock-off version turned out*:
*I have a "no swimsuit pictures of myself on the internet" policy. It's not because I have body issues. I like my body. It's because it does not empower me to show myself in swimsuit to the internet.
My top is only similar. I could not find a pattern that matched exactly. I'm pleased with the fit of it and it is very comfortable.
I ordered all my supplies from Sew Sassy Lingerie supplies. I always use them for lingerie supplies. They have all the linings, elastics, underwires, channeling, hooks, rings, etc.
If you've never tried making your own swimsuit, I highly recommend giving it a go. It's a surprisingly quick and easy project and you can not only have a custom fit suit, but at a considerably lower price than $700. In fact, all total, with fabric, supplies and even fabric and supplies for the test suit I made first, I spent about $50.
Make something beautiful!