I have purchases a 9760 that is set up for corn, and will need to be set up for wheat. I realize I will need small wire concaves, but what would be the best set up? I have seen helical front concaves, I believe from Lowen, are they needed?. On lease combines in the past they had them set up with small wire concaves, 2 cover bands in the front, and 1 under the return, and 2 rows of separator covers on the left. I also have been going to check the sieves to see if they are long tooth or not. If they are, would I have to change them for wheat? Any other suggestions would be appreciated. I am also looking for a header, and am leaning toward the 974 flex draper from Mac Don. Will I be happy with this header?