The ones I’ve seen had the 68mm turbine wheel, and I haven’t seen any sold with the wastegated T3 housings on them that is usually used on these pickups. Several places sell the T3 wastegated housing for the 68mm wheel separate though, Power Driven and Crazy Carl’s I know do for sure.
I was borderline set on putting a 60/68/.7 together for my pickup to use but I ended up getting an S357/65/.7 through some trading a couple weeks ago so I may try it as a single or put a primary under it for some small twins.
Mark I’ve always had it done just at a local turbo rebuilder. The last one I had done they cleaned and blasted the rotating assembly and balanced it for $100.