If at all possible you should consider bringing in a stump shear. I cleared 6 acres of timber and found it to be the greatest time saver of any single piece of equipment used. It cuts the roots then extracts the stump leaving the ground more intact. There is no reason to extract a huge mushroom of stump, rock and dirt to later dispose of. There is FAR less to get rid of by leaving most of the roots in the ground to rot. I have a root rake for my D3B which I lightly went over the clearings with. The root rake made short work of getting the top network of small vine like roots out of the way. It is a good tool. No reason to go any more than 6-8 inches deep in my case. All that did was bring up more and bigger rocks.
I then used my D7-3T to grade for camber and drainage. The 2" grousers really crunch stuff to bits.
I had been told that bringing in bog harrow with 3' discs would be a good idea but I found that unnecessary. I just got it raked and graded then went over it with my disc harrows and spread a LOT of lime. I'll go back over it with the harrows next spring then york rake in more lime, fertilizer and seed.