I know that our's is technically not a Beast Chassis, but we have an 2007 Eagle Pavement Car for sale.
While our price would be above $10k, I think that you'll find that what you'd be getting from us would have more value than just a used car.
Please Check out our post here- and feel free to call if you have any questions at all.
https://www.indianaopenwheel.com/showthread.php?t=40626
-TK Motorsports