1981 300D non turbo. How much is it worth?

[veg_hed_300d]

So the junk yard that I frequent just got a 1981 300D non turbo in. This car is 100% complete and in suprisingly good shape. I can't figure out why it's there but they are parting it out now.

I thought about seeing if they would just sell the whole car, which i'm sure they would. It's in great shape with a couple of dents on the drivers side doors and some rust in the floor boards. I asked if it ran and they didn't know but the spedo only has 143,000 mile on it and the engine looks clean.

I know its in the junkyard for a reason but I would love to rescue this old mercedes. Worst off I could use it as a parts car for my 82 300D.

How much is this thing worth, running or not?