Matt, that's a frequent topic of discussion here. If your rooftop AC runs when you're connected to shore power, you should be able to make it work while you're driving in several ways.
Simple and easy is connect a generator. Self explanatory.
Second is, if you have a high output alternator you may be able to use that power for your AC by using an inverter to change the dc to ac. Additionally you can have a house battery bank that charges from the alternator while powering the AC through an inverter.
The third way seems to be the super long extension cord.
For posting pics, upload them to photobucket first then transfer them to this site. Some other sites work too if you've got the time to experiment.