jstec,
You're not hijacking at all, that's awesome! Im unsure on goby now because of my Shallow sand bed (about an inch or so). I've seen the solar wrasse, they're nice, the males are super colorful. I'm strongly considering giving one a try. I just don't want too many fish.
2-clowns
1-royal gramma
2-fire fish(if they get along together alright)
1 or 2 high bandid gobies??
I-solar wrasse.
Sounds good to me I might cut it down to one goby and one fire fish but that's just me personally also make sure u have a tight lid my wrasse is a huge jumper