I have cut up to 170 acres of 40 bu peas in one day with a 2188 and a 30' 1010 header. They were standing perfect. Even if they are laying down a bit, I can still cut at least 130 acres in a decent day.
I'm running a 2366 w_ 20' 1020 and if i'm in any kind of decent sized fields (anything over 5 acres in Pa.) I can run 7-8 ac._hr. If beans are dry the knife, not the thresher, is my limiting factor. I'm thinking you should have no trouble running 11-14 ac_hr. I'm not running a grain cart.