Ok here's something you won't see every day.
I have an L20ET engine from a GC211 Skyline. That's a 6-cylinder L20 with factory fuel injection and turbo.
The car it cam out of had only 71730km on the clock. I've attached a pic of it still in the car.
It appears to be a reasonable thing, not leaky and comes with a clutch. Unfortunately the distributor is missing for some reason and there is no loom or ECU but the rest of the injection system seems intact. The turbo doesn't have too much shaft play so it's probably fine. With an electronic dizzy and aftermarket ECU it should be easy enough to get this going, or you might want to swap the bits onto a larger L-series instead.
Price is $750, cheap freight available too contact me for prices.
Is this still available?