Joe from Alfa-Subaru in Sacramento was talking about putting a 6spd in his SVX. That was about 6 months ago, and it sounded like he had all the parts, just had to find time whilst reparing other peoples cars to do it.
Also, he didn't want to throw an STi block in there. Because 3.3L H6 > 2.5L Turbo H4. He said he was *thinking* about throwing a turbo on, but a NA car with ~240hp was enough for him
He was also going to throw a 5spd into another SVX he had lying around his shop. I think he quoted me $7k for it after the swap was done. Wish I had the money for that.