As I live a couple of hours from the nearest "dealership," one that really prefers to sell orange, I choose to go 500 miles away (by phone) to a large MF AG dealer, who has no problem getting whatever I want and just ships it along, usually with very inexpensive shipping.
Also: I'm hoping to not break much, but I know it happens. Thank goodness for the online parts book! Actually, even if I didn't have it, I think the parts dept at the dealership I call would find what I need, but having the right number helps speed things along.