I have felt this pain. Studio strobes with appropriate sized modifiers, a light meter and a cyc goes a hell of a long way towards reducing post. Studios are relatively cheap to rent when you consider the alternative. It's why I invested in my Bowens. I rather like white backdrops when done correctly. See: MR PORTER, Tres Bien Store, ZOZO.jp, SSENSE. For my friends, my time is always free. Get them to pay for your media pass to fashion week.