You are going to a much longer wheelbase, so maneuvering is understandably rather clunkier.
It seems to me you're overthinking things. Get to the site, stare at it a bit, and do what it takes to get where you want to be safely. It may be some back and forth and back and forth. It might just be a pull forward and swoop around. It might (probably far too often) be a swoop except for that one rock or site number sign that is in the most inconvenient spot. Regardless, with a bit of practice, you'll get a reasonable feel for what needs to be done when.
Practicing in an empty area of a parking lot is a good way to get a feel for things, and being able to put yourself in a (pair of) parking spaces properly is a very useful skill indeed in its own right.