Bob - this is a great start and a lot of steps in the right direction. But why does the fashion industry need all the space? They make assumptions of what is needed to sell in the shops they sell to... and hopefully it all sells out.
As someone who is hard to fit (tall and curvy) I'm looking forward to the day we don't manufacture a piece of clothing until someone buys it. Then it's manufactured to fit their body and picked up at a store close to them. Yeah, you have to make agreements in quality control, but man, I'd buy much more expensive outfits if it was well designed and fit me perfectly.
Do your designs only fit sizes 00 - 8? If so, make it clear that in your opinion, your designs can't accommodate a larger size. The business goes elsewhere. Some day, someone will be brazen enough to look at the range of human bodies out there as an opportunity rather than an imposition.
But that's just me. :-)