Don't know if anyone cares but I got the Lokar nostalgia shifter, its very nice although instructions weren't entirely clear its easy to figure out once you start putting it in.

The shifter has exactly the look I was going for, the nostalgia shifter for the 4l60E is only available in the 23 inch size. This ends up being about an inch taller than the dash on an 88 Silverado, it looks awesome. I also got the Lokar hot rod shifter boot which is a very nice piece as well with a nice chrome trim ring and a nice boot material, it seals tightly on the shifter and has plenty of extra room to cover the hole in the floor.