racerboy - -
Been there. Had 12" ruts in my yard in November a few years ago. Real mess. Left it alone until April.
Let everything dry some before you make another mess. Don't let it dry too much, looks like a lot of clay on a hill....be like a rock. Get it still moist.
Cover the topsoil pile.
You've got some ruts and bumps in your yard that will survive without some work by a ground-engaging implement. Smooth topsoil won't fix that.
That said, on the cheap I would spread topsoil as others describe. Pull well-forward with a bucket full of topsoil, then back up slowly uncurling with taps. It works.
Been a while since I shopped one, but isn't there a "real tractor" drawbar on your B2601? Can you use it with the backhoe on?
If so, then go with a 4-6 foot piece of 4x4 or 6x6. Heck, make one out of pieces of "cheapest" 2x4 or x6 pieces or scraps screwed together to make a 12x6 "frame" to drag around. Box spring or fence section works too.
Eye bolts both ends. Threaded eyes would work.
Use rope or cable on the eyes, then make a "fixed" loop that will go through a clevis to hook to the drawbar.
The fixed loop on the tractor end will keep the lumber "square" with the tractor. Fix the loop by knot in the rope, or ferrule on cable.
Should smooth topsoil well. Go reverse of topsoil application, back WAY away, then pull forward.
Only problem with dragging anything means you have to move it with your bucket or by hand....can't back up with something towed by cable......
Your not going to be pulling very hard. Should work and will limit amount of raking.