Going to quote this job soon. Being that this a travel trailer on wheels being fed from the main house 450' away I don't think this qualifies as a separate structure and no electrode system would be required, but I'm looking for opinions on this. He wants to be able to run his ac and fridge, etc in the travel trailer so vd is also a concern. It's a 120v 30 amp panel in the trailer. I was thinking a pedestal with the 30a receptacle and a few gfci's as well.