Why are you even looking at a 7010 for 1,500 acres???? We're at nearly 3,000 with a 2588 and got everything done between Sept. 22 and Nov. 3. And that was with several rainy days and half days of running. Find a 2188 for less $ and have fun. By the way, a late model 1688 is the same thing as a 2188, just a different cab.
That being said, I'm looking to bump up to a bigger combine as well. Looking 7088 or 7120.