Overheating-cracked block?

[alminiowa]

I was hoping I could get a second opinion. My 1983 300D overheated. A coworker who is good with cars said he suspected it had a cracked block, so I stopped driving it. The car has been sitting for over a year without being started--until today.

There's a good chance I may be moving, and I've been reluctantly thinking about selling the car. Today, I put a battery in it and it started up immediately.

I noticed there was no antifreeze in the reservoir so I added it while the car was shut off. I noticed that the reservoir was not filling, so I started looking around for a leak. Turns out there was a steady, small stream coming from underneath the car toward the front middle. I got under the car and looked and followed the leak upward. Pictures are attached.

I'm wondering if this is what a cracked block looks like?? Do I need to accept the car's untimely death and move on?