three weeks ago, there was a type IV engine sitting behind a bus at the CFC Pick n Pull in Tullahoma, TN. It had both heads on it, but I couldn't verify the condition. Price is $55 for a head without a cam, plus a $10 core charge.
It was from an earlier "late" bay, so it might have been a 1.7 or 1.8, but then again, they have almost all been rebuilt, and most likely built up. Might be worth checking out.
Take wasp spray.