"PROBLEM: The usual CF build"...oh, you mean dead sexy, right? <img src="i/expressions/face-icon-small-wink.gif" border="0">
As for me, I can usually expect to spend ~$40 or so. And I love love love tankinis with shorts/skirt bottoms. Mainly because I'm overly self-conscious, but also because they really do the best for my overly curvy and short figure.
Good luck!