I for one buy lots of "grab bag"type auctions on ebay, But then again I make scrappy quilts. From experience trying to sell fabric, unless it is some high demand designer type you will not get your money back.
I would try it the easy way first ,you can always go back and do it the hard way if they do not sell. Then again , thats how I roll as they say lol!
Ps,
I am in the market for brights/novelties!