I don't really understand what type of robes the OP and others want. I got several "basic" robes while questing on my Jedi Guardian - one of the most basic being the first orange one I got on Coruscant via some heroic mission which I wore from ~12-50. It was similar to this:

 

http://www.torhead.com/item/3w4dHYC/peacekeepers-chestguard

 

That strikes me as pretty basic/standard and I got several variations in color on this one via leveling. The only problem was I couldn't put the hood down, which I would've really liked to be able to do.

There's nothing wrong with that set except for the hood, the belt on the outside of the robe and the fact that there is not a similar version for light armor user (there is for medium). I'm also not a fan of the faded coloring of the browns. What we need is for the Battle Expulsor's set to have an illegitimate love child with the Valiant Jedi set, and we would then have nearly perfect classic Jedi robes.

Throw in armor dyes and Sith would probably be happy as well.