The sketch shows going up the driveway heading almost due North (319 degrees) anyway the gravel roads are solid so stay on them. Work is continuing on roads and utilities for Site #1 as well as drain tile, foundation reclamation and backfill.
To back a Trailer into Site #2 its best to drive up around easy curving to the left, well past the pad until the rear of your trailer is positioned just where you want it to back into the pad. If done right you should hardly have to turn your steering when backing up…most folks seem to oversteer, good luck. I think it’s actually best to back into any RV Site here drive up and around then past the Site planning now how your Trailer will be positioned when you back into the Site.