Assuming the transmission goes with it?
We just had a whole discussion about the manifold thermostat, which can be seen in your picture. Looks like a 72 or higher L24, or an L26. Look at the flat spot above the starter for stamped/engraved letters and numbers. It will say either L24 or L26. Could also be an L28 that's had carbs installed.
Not much information. Since it has no running history, it's worth less than one coming from a car. A Pick n Pull wrecking yard would charge about $250 but you'd have to remove the engine yourself, let alone find one, so yours is easier.
If you just want to move it quickly, $200 would probably draw a buyer, just to have it as a spare. The 4 speed transmissions aren't worth much though. Everybody has one left in their garage after swapping a 5 speed in.