MasterEagle,
First, stop beating youself up about it. Second, don't wait around, correct the problem at the earliest convenience. Return them to the site and just find a new place to swing your MD.
No condemnation from us , or threats of bad mojo, Just do the thing that makes you feel good about youself.
You are the one who has to look in the mirror.
We all understand about these kind of things.
My suggestion... For what it's worth.
Now you know where the plot is map it out.
Private samitarys are very small, Use a circular pattern and map the whole place . once you have the whole burial plot mapped you will be able to safely cover the rest of the grounds with no problem.
Old Dog