Need some advice

Hard to tell without pics but if it is straight and mostly rust free I would say $4,000 or more depending on condition of interior/trim/how well it runs. How hacked is the engine trans swap. Holes drilled for floor shifter? Is the clutch pedal still there? Is there any of the original linkage with the car? Does the guy know where the original drivtrain is? A 340 four speed car would be valuable with the correct parts in it.