If I was going to build a crib to make the project work, I would avoid starting a skid loader or scooping anything. I always imagined a V bottom crib with sliding floors to keep the drag or U trough out of the weather, but there's no reason the trough auger or drag couldn't be mounted on the side where garvo's style of crib would normally dump into a bucket.

I'm pretty sure there is a video of a long tall narrow crib in a country where they crib the corn and then bring in a combine that sits stationary to shell the corn into trucks.