Inside Outside

Quick question: how can I use Mechjeb to get a satellite into a particular orbit for a contract? I've been using the AN/DN to line up my inclination during ascent, but I don't know how to line them up exactly beyond eyeballing when to launch and hoping I get lucky. You can't seem to set the designated orbits as a target and inclination changes in orbit use up far too much dV, so any suggestions?