Looks good!
I did a similar conversion after spinning a bearing in the original /6. I replaced it with a /6 from an 82 truck which already had the super 6 setup. I just had to use the distributor from the original 6 as the super 6 had the lean burn disty. Of course the engine mounts and such. The one thing I do like about the newer engine is the hydro cam put an end to my fiddling with the lash and the peanut head so no drool tubes! lol
...anyway I just wanted to mention a couple things. I was able to use the longer throttle cable without problems and instead of eliminating the EGR I just updated it with a later easier to find style.
I also wanted to make a quick observation on your final pic above. It looks as though you have your PCV line connected to the carbs fuel bowl port and possibly (because of the angle) your charcoal can to your full vacuum... You likely realised this already as you would have a huge vacuum leak, just wanted to point it out
But like I said looks good man!
EDIT: I just noticed the PCV is hooked up that way in your first pic too, to the single barrel holly!