a 450 is comparable to any class 6 machine maybe even a little more capaciity than a 2288, a 9610, a R62 so on. Handles a 25 head great in soybeans, and a 30 ft very well too. Not sure in wheat.
The cat 450 is the claas 430 for some reason Cat have not used the claas 450 as there 450 model. Claas have 9 models in the lexion range, at present they have MB engines. 405 _170HP, 410 _190HP, 415 _200HP, 420 _220HP, 430 _240HP all 5 walker machines, 440 _250HP, 450 _275HP, 460 _300HP all 6 walker machines and the 480 _400HP.
Having that many combines in one line, which are so close together in size, horsepower and configuration is ludicrous! You could almost knock out every other model from your list and still be able to cover all market equirements.