So I mocked up the cardboard template under the car and here is the updated shape. I trimmed the template down a little on both front and back, and added a hole for access to oil filter and drain plug. The black dotted line is where I will bend up the metal approximately 6 degrees. It's not in the template but it is illustrated by the red line, I'm going to add a little edge that will be bent up vertically. Two pics here from both sides so you can see the new shape relative to the outline of the original splash guard.