It's a challenge to make a decent bra, for sure, but if one insists on staying the weight of a woolly mammoth, it should be worth it. You can buy a YUGE range of bra wire sizes online, learn how to draft a cup and a band exact to your measurements. If you look hard enough, you don't even have to pay money for the sewing tutorials, though the materials can get pricey pretty fast. For me at least, it takes a huge amount of trial and error, but it can be done.