Just an update, Moser sells a complete 9" rear housing with floating hubs and axles in any length you specify for $879. Here is my rear end during installation.
Moser also sells floating hub kits that allow you to adapt floating hubs to your existing rear end housing for $450. Check out Moser's Circle Track Rear end section.
http://www.moserengineering.com/circ...and-parts.html
Speedway Engineering also supplies a lot of NASCAR teams with rearends and floating hubs parts.
http://www.1speedway.com/