Man, you guys are kinda being dream killers here :lol: I'm just kidding.
I will come from another perspective though. Don't ditch the damsels yet. From my understanding and research, they tend to be some of the lesser aggresive of the species. In the past I've had them in with tomato clowns and they never bothered any of the clowns. Watch them carefully, if they pick on the clown, lose them, but if they don't, leave them, and just make sure anything else you put into the tank can defend itself just in case (like a Flame angel or something).
IMO, Crushed Coral vs. Sand Beds Vs. Bare bottom is all a matter of what's pleasing to the person. This guy liked crush coral, so keep it if you want, just know you may need to do more frequent water changes b/c nitrates have a better chance of going up with Crushed Coral.
Ya, it's a good lesson to learn to use LR to cycle your tank or fish food, instead of fish, but I'm sure the LFS didn't tell you that, and just wanted you to buy some fish. Just make sure whatever LR you put in the tank is cured (for about 4 weeks), and it will be fine
My only advice for you would be to wait on the anemone. They usually require very stable tanks. It's usually not recommended to get those until about the 6 month mark.
Oh, and I do agree with the comment about getting a protein skimmer. I would probably recommend that before putting the money into new lights, but that's just my opinion.