I'll give you a singular data point.
About 2 years ago I bought a 2.0L core engine with (realatively) complete FI, and a core transmission for $700. Not running, no way to test, not frozen up - turns over with breaker bar.
It was a fair price but it also involved 14 hours of drive time, gas money, a vacation day, and paying tolls to the crooks in Illinois for the ability to drive on Interstate Highways for which I've already paid Federal Highway funds. So let's add another $60-80 for gas and tolls.
Anything that old will likely need new pistons and cylinders, and the heads to be freshened up assuming they aren't cracked and unusable.
Unless you have a known running engine with compression numbers, and good leakdown numbers . . . . you have a relatively low $ core.
Having a complete FI with the proper components (ECU, MPS, AAR, fuel pressure regulator, decel valve, dizzy, etc.) will boost price slightly for someone looking for FI. See Brad Anders page to understand what you have. If you have mis matched FI parts -- drop price accordingly or part out FI individually.
https://members.rennlist.com/pbanders/DJetParts.htm