I just looked at the ebay post. Those pictures are of the engine at Rennwerks. You can see those pics. on their website.
My engine-less M5 is at Rennwerks right now since I was going to buy that engine. I saw that engine first-hand the other week.
Unfortunately, I hit a financial wall during the two days that my car was on the flatbed to MV and have since told them that I need to pull my M out and forget about buying it.
Since I got their interest up in selling the engine they, or the owner of Rennwerks privately, might be trying to sell it on eBay again. I wonder about the New York location though. I'm going to email Rennwerks and alert them.
Btw, anyone looking for a well-cared for 540/6?