I could have done with the helpers back when I moved in 8 truckloads of dirt, and shaped and raked the entire project.
The real issue is water, I have instant access to various sized plate compactors, even a ride on roller, But in order for compaction to work the dirt has to be wet, and we are having the longest hottest summer I have ever seen, and the nearest tap is about a mile away.
Just raking it out doesn't do much, The car is ripping holes in it on the first run.
In regards to the layout, It works far better then I had hopped for, I didn't get to run a car on it until I was well into the project. It could have been a major mistake.