Fitment of Single Turbo

[6D9 Matt]

I have a 416ci LS3 that I am hoping to throw a turbo on in coming months. I am leaning towards the BW S485, but it is a T6 flange and I am just curious how many people have experience with the single turbos on these first gens (with power accessories). My installer seems to think T4 would be the safe bet, but performance wise T6 is the way to go. Just a little worried about running out of room.

Anyone with experience with single turbos on these cars?

Here are the dimensions for the turbo...
https://www.industrialinjection.com/171701

Appreciate any info, help, etc.