Last I knew, they keep them in stock:
http://www.suncoastconverters.com/
Give them a call, just because they are not the hottest thing selling right now and web site space is limited. Ron Wolverton is not going to turn his back on his customers. Even if they sell out, they can build one in short order with components they have on hand or can get what they need overnight.
If you are inspired, Suncoast has a kit you can drop into your case that will handle 400HP, just in case you get the bug. Talk to Ron and you can get an upgraded front pump (better than stock), upgraded valve body, and other stuff. For this we can thank the guys and gals that have the Ram trucks with the High Performance Diesel & Gas Engines who like to break things.