Since it's relevant, someone posted a soloing BLM guide on KI. It's actually got some good tips and VERY detailed camp spots, so I suggest anyone leveling BLM looking for stuff to do should check it out.
*EDIT*
Scratch that link actually, someone took the authors guide(gave credit and original link of course) and put it on Wiki, so its much easier to read. Plus it means you don't have to go to lolKI. So once again, check it out as the soloing tips are a good alternative if you can't get an invite but don't want to go back to town to craft.
http://wiki.ffxiclopedia.org/Black_Mage_Solo_Guide