Mobile Scrubs?

I am a mom of 3 looking into starting a new business. My sister is an ICU nurse and is always complaining that we do not have a place locally that she can buy her scrubs, etc. I was thinking of starting a mobile scrubs business, doing one day sales at hospitals, large practices, nursing homes,etc. Has anyone ever bought scrubs this way and what are your thoughts since your're "in the know". Also, how important is it to carry name brands (Dickies, etc) do most in the profession just go for price and style or are brand name important to you? I really appreciate any advice you have the time to give. My hubby was recently layed off so this is a really important decision for my family. Thanks again and bless you for all you do.