I put my old one back together with CA glue to keep as a spare, and it turned out alright. Looks like you still have all your pieces if you want to try it out too!
I just had to ask him for a new T handle too!
I felt like a jackass after seeing that there was a second grub screw on the back side... I thought that it was possible a screw off handle since it wasn't just sliding off, and turned it a little too hard..