I loved my turbo-charged 2H...but I love my Vortec a whole lot more.
I get the same fuel economy on the freeway with my Vortec as my turbo-2H got, and I have gobs more power. I never slow to less-than 65 MPH/ 105 KPH or so, even on I-70 going to Vail. I towed my FJ40 on a tow dolly from Boulder to Phoenix, and my troopy was still faster than the turbo 2H was without an FJ40 in tow.
Around town, the 2H got better fuel economy than my Vortec does. However, I don't have any turbo lag now. I sold my 2H/Turbo for more than I bought my brand new Vortec for, and I don't miss that 2H at all. I say save the money on the turbo, buy a new Vortec, and sell the 2H to someone with diesel envy.
Cheers,
Josh