Depending on what you have for attachements, you could be looking at 6 or 7 tons. I saw somebody post the other day that scrap was around $260 a ton prepped, so there you go. You could sell the blade to a collector for $750 - $1400, a winch could sell for about the same. Hydraulic pumps/lines/controls get several hundred. Motors, undercarriage, track frames/rollers all are saleable items. You could make more by parting it out. Most of us here would probably show interest in it.
Personally, I am needing the hoist arm for a 4A blade. Want to sell me yours (if you have one and it's in good shape)?
How much do you want for the machine?
Is it a bulldozer with blade or a trackloader with a bucket? D4 7U Traxcavator weighs closer to 10 tons with a counterweight or winch.