BF Pretty much between 4-5 %
As for tanning, make sure you get a base tan before you apply any type of Dream/Pro Tan. Also tan in your posing trunk. I remember competing against a guy years ago, guess he was a lawn nower guy, even after applying bronzer and such you could still see he short and sock lines...terrible
As for water, on the Weds before the show I take in 1/2 gallon of water, Thursday 1/4 gallon and Friday, just enough to wash down my meals, ounces worth. This in tandom with Dandelion root, goldenseal or something of the similar just to eliminate any last minute water...
Good luck