I have a complete (including computer and harness) 968 engine for sale. The odometer showed 144,000 miles. It was parked last year until the PO could get around to doing the timing belt and timing chain changed due to age and that never occured. (I am guessing it has been at least a decade since they were last changed. ). I ran the car around the block just to make sure it was good to go. It ran and drove. It should also have the oil seal done.
$3850 plus shipping
The limited slip (lsd) 6 speed transaxle is available as well at $2850.