TN Hillbilly,
By skid loader, are you talking about a front end loader? I have experience using a rubber-tired backhoe with a front end loader bucket (something like 1 cy size). I think you're right, I could probably get by with that. I have a clay layer just below the surface that I could mine such a small amount, from nearby. I'd have to make sure the slopes were dry, I suppose, they were pretty slippery after the rain last weekend.
You've given me a good idea which I hadn't thought about. Thanks!