Accessories - Housewares - Finishing Touches - glass shelves on pitched roof walls

I have a great room about 28 x 50. I have one wall that has a 2" pitch to itfrom outside wall to center of room, from the shelf (that I want to put in) to the ceiling. I am having the glass cut in 8" x 36" sections to put all the way around the room.

My question is, should I make a straight line flat across the pitch or stagger them up at each section to make the shelves appear to walk up the pitch? Also around the rest of the room, should I continue the stagger or make them straight, since those ceilings are flat across??

Also, do you have any ideas of the least viewable brackets that can support the shelfs. These shelfs will be used to put small to medium figurines to get them off my tables.

Here is something that will work for you:

http://www.crlaurence.com/ProductPages/E/E106A_32268.html?Origin=

Thanks that help alot