I was just browsing around Ebay when I found this listing:
Sony PlayStation 3 60g Piano Black Console System NTSC PS3 Backwards PS2 CECHA01 0711719699651 | eBay
Seems like this guy has a bunch of them too. Though they are refurbished, they are CECH-A01 (full PS2 BC) and are either below 3.56 or downgradable. $300 may seem pricey, but these early systems are quite hard to find these days.