Well spotted Mick. They're saying retail is $13,000 which is rubbish. Several places selling the whole shooting match, water pump to flywheel with all looms, accessories, belts, pulleys, including engine mounts and a remap for under $11,000 inc GST.
I've asked the seller for a proper list of what's being sold, as "crate motor" doesn't really tell us much. I also had a look at their feedback and it seems they sell lots of HSV jackets, headlight protectors and the occasional muffler. All of a sudden they're trying to move a "$13,000" engine.
Edit: I guess that's still $2000 below the price from WASP, I'd just be careful with regards to warranty.