Robert - No worries...I realize that the D8 won't always be able to replace individual DI boxes BUT will be a useful alternative in certain applications - the DI boxes will still come with me to shows.
Tim - I might not find that housing the D8 in with the D Snake will work as well as I would like and I am open to making changes like the one you suggest in order to get the best configuration.
Each time I introduce anything into my set -up, I am always willing to test things out for a few shows and change things up if need be. I suppose it will depend on how many times I find myself having set up and wishing that the 2 units in the rack were split for ease of cabling/positioning etc....
Right now I am just very happy to have a really good quality DI unit for an excellent price and even if I never get to use more than 4 or 5 channels at one time due to placement on stage, it is still a worthwhile investment for me.
Ironically I do have an old Gator 2u rack case - wood body in carry case style - that I could use for the D8.
For now I will hold off making any changes to the rack i.e. patch bay install etc until I am sure.