completely agree the damsel can be very aggresive so I wouldnt not go for them and the catalina gobys need different requirements. the lobsters not a great choice either as you'll never see it as it wont come out in any sort of light and it will eat everything it can. if by blue regal you mean a tang then your tank isn't big enough but a kole tang is a very nice tang you could have in that tank. same issue with the longfin bannerfish and the foxface lo but you could get a one spot foxface. what sort of crabs as some can hurt your fish etc are you planning on this being a reef tank or just fowlr
I would maybe consider a leopard wrasse instead of the 6 line
kole instead of regal
stay with just the clown goby as they will be competing with the madarin
I personally love puffers so if not a reef tank I would consider a valentini but always a risk with one
To start I would go with the clowns, then build up slowly with the dottyback, cardinals, anthias, I know it will be difficult. I also would cycle the tank first dont do a fish in cycle.
The best thing to research on is liveaquaria but you will want to add any agrresive fish last so the flame angle and the 6 line. and you will be better adding the foxface, gobies and definitliey the mandarin into established tanks so they need the tank to have been up and running for 4 5 months maybe to ensure they are happy. with regards to the inverts I would add them as you go along the more fish the more you feed so the more waste from feeding available for inverts so increase the inverts as the fish increase. but again number of fish will depend on if its a reef tank or not. hope all this helps and that you don't think ive picked too many holes in your stock!