I don't see any issues, with them getting along. As melosu said the dragon goby (bullet) are one of the best sifters. But diamonds and golden head sleepers are good to.
Sounds interesting, but I already have a couple of large cleaner shrimps and some small Peppermint Shrimp. Would the pistol shrimp compatible with them?
i have a goby and a blenny in a much smaller tank and they get along just fine. granted they are not the same species, i have a yellow watchman and a starry blenny, but i dont think you will have a problem
is the starry blenney red and white blotchy
if it is then i heard they are closely related to the mandarin family and are really hard to keep because of there eating habits
i had one that looked like it was doing fine for two months and then one day i just see my nassarius snails munching on the poor little guy. i know they didnt kill him cause the second i put my hand in the tank to adjust something he would dart offf leaving only a cloud of sand dust