With heads, cam and the 52 exhaust, I would think 10's would be within reach. It should be a mid to low 11 turbo without heads and a good tune with lots of boost.
Just bought a GT6152 turbo myself for the T, stepping up from the stocker like 2QUIK6. Only difference is I'm running 50# injectors and stock IC with a dutt neck, but I also have a 9" 3200 converter. Last time out (2nd time with alky) I ran 12.4's with 7.8 1/8th's on the stocker. Considered the 31 exhaust, but figured I should be fine with the 52 and my converter. I'm hoping for mid 11's early on and working from there.
After that, I would be like you and get heads, cam, yadda, yadda, and push for 10's.