Lots of people in australia ran the nykolaisshen kits and i looked on the internet a few months ago and i still could find them i think. the blanking plates were very expensive as a jd part at least in australia considering how many of them you need, i just went down the road to a neighbour who ran four of them and he gave me cartons full of them, i think i may go back and offer him a couple of grand for all their spare parts and i reckon it would last a lifetime. they now run sts machines and buy accelerator belts by the pallet.
In "the Book" there was a tool to apply to the beater pulley with a 3/4" socket, don't know if it works but it was about $250. just when you wind the rotors out don't try to shock start the machine as the chopper blades hit the rotor cages. never done it myself but my machine bears the scars from previous owners.
not much experinece with 9600 but my cts11 was doing 35 (1500bu)tonnes an hour in standing barley that was doing 4t/ha (70bu) not bad for a $60000 machine with 3500 hours on it , it would have handled a lot of grain in its years.