Wow - interesting thread. As someone who is just about to buy a tractor, it's very relevant to me. I can see both sides of the "general case" issue, but I have to agree with the OP - in his particular case, the dealer should have found the needed washers and apologized for missing it on their pre-delivery inspection. The handle? I personally would have thrown it in and taken the hit on profitability, but that's a "your mileage may vary" comment.
I am curious, though... When I buy a new car, I have access to all sorts of information via Edmunds, Kelly Blue Book, etc. that can tell me pretty much exactly what the invoice price is on the vehicle and options I want. Armed with that information, it's amazing how many dealers will immediately tell you their bottom-line profit figure (at least in terms of $xxx above invoice - I recognize there are other potential profit opportunities for them). Most often, it's $500 over invoice, though on a couple of occasions, I've had them quote me "$250 over invoice, if we have the vehicle you want in stock." And on one occasion, I was perfectly happy to pay $1,000 over invoice for a particularly popular (and relatively low production) vehicle.
Here's where it gets interesting: I know exactly what their invoice cost should be, because I've got the Edmunds.com & KBB.com printouts in my pocket. (Tip - always configure the vehicle you want twice - once equipped as you want the car to be, and once with every option known to man, so you'll always know the cost for any "extras" on their "in stock" car.) If they lie to me, and inflate their invoice cost, I call them on it and walk away immediately -- assuming that they will lie about anything else just as easily. (One guy even had fake invoices printed up on "official-looking" paper, and tried to convince me they were legit - right up to the point where I suggested we call the distributer with the VIN and have the distributer confirm the invoice... Suddently it was "somebody must have made a mistake and mistyped the VIN on this "reprinted invoice"... I was so glad to leave that dealership!) I've closed the deal more than once in less than 5 minutes!
I would love to be able to buy my tractor the first way - with a reasonable expectation of what a "fair" price would be. I don't want to "exploit" the dealer (I want them to be there later on when I need something fixed), but I don't want to be exploited, either. I'm going to spend more on my CUT than I did for the truck that it used for daily transportation (and hauling the tractor)... I wish that I felt even half as confident that I'm getting a reasonably good deal on it...
Is there any service similar to Edmunds or Kelley Blue Book that shows the dealer cost for tractors and accessories?