Although, I am no expert, the folks from the Hot Club of San Francisco advised me to get some of the Robin Nolan, music minus one, Gypsy Jazz workbooks.
If nothing else, take a look at the repertoire for each volume, and use that as a guideline as what to focus on.
http://www.robinnolantrio.com/Books/gjb.htm
Unfortunately the bass has horrible intonation in places, and doesn't hold down the bottom to support other soloists much of the time, but I have found a couple of the books I have to be a nice way to run through some of the repertoire when there aren't jam sessions available.