I have a polished PIT 40mm wastegate. The PIT is identical in shape to the Tial so you can use them interchangeably, and it's brand new.
I have the output flange for this, and I also have a few spare springs I can include, but I don't know what the spring rates are. The PIT uses the same springs as a Tial does.
The only thing you'll need is the valve seat which you can get on RRE's site.
http://www.roadraceengineering.com/tial.htm
Threaded Mode