We did the Dearborn things several years ago, and our entire family are going back again next month. To see Dearborn right, you really need three days, one at Greenfield Village, one at the Museum, and one at the Ford home. They have two steamer they can operate at Greenfield, one being the last operable Mason Bogie, but I understand they use the other engine more often.
Enjoy it Ron, it's a great place for the entire family. / Ron