eBay find: 2 .63 AR Stage 1 t3 turbine housings cheap
 

Exducer port is measured at approx. 2" so it's most likely a stage 1 turbine. Unsure of the 5 bolt pattern - maybe ford? Price is low on both with only hours to go. Unknown manufacturer but new. Some risk, but could be a cheap upgrade from a .48AR IF it works out.

turbine housing 1

turbine housing 2

http://i20.ebayimg.com/04/i/000/ed/6c/6d54_1.JPG
http://i9.ebayimg.com/02/i/000/ed/6c/6d8a_1.JPG

I bid on #1.