if you can get the block and all of what you say for 50 to 75 bucks than i would say its a good deal. if it were me i would be buying it with the intention to rebuild it. ( i wouldnt trust it being that i dont know how it has been cared for its whole life) the block and the crank are the only things i would be keeping. i'd then find a matching head and have the entire thing rebuilt. that would cost about 1250 bucks. i would also need an intake manifold compete with throttle body, fast idle valve, intake air control valve,egr valve, hoses, thermostat housing, the exhaust manifold, trans, dizzy, ecu, harness, mounts, axles, ---the works. basically everything off a 95 integra LS car that i dont have as far as engine and driveline. i wouldnt pay more than 125 for the head and cams depending on its condition. at 225 total investment thats still cheaper than buying a complete engine from a wholesaler...which will still need to be machined. i just dont trust used engines enough to rely on them from the gate.
