im sure someone on here would offer a few bucks for all the corals in one shot. would be great for a beginner!
lets put it this way
pic one: toadstool if it had nice coloration and in a store would be a 50-60 dollar coral seeing it looks great in size and opens fully. since it looks just plain white and no color at all... your probably looking in the 20 dollar range
pic 2: those i dont think are mushrooms, i think they are cabbage. is so, cabbage is a cheap quick growing coral. again, you should be able to get maybe 20 bucks for it.
Pic 3: xenia, stores sell xenia for cheap, but almost always you see this free online because its a weed grower. it grows so much and so fast, most people give it away.
pic 4: kenya tree. simple easy coral. probably 15 bucks for it
pic 5: hammer coral. very faded in color. usually hammers can grow pretty fast and sell for about 20 bucks for a nice size, but usually bright green and nice redish tips.
i also see a clown, maybe just a simple purcula? 15 bucks
yellow tang. i cant tell the condition, but 20 bucks is fair.
tank and stand maybe around 50?
sump another 40-50
UV about 35-40
small fuge light 20
skimmer, cannot tell brand. brand and model can make it from worthless to a pretty penny...
internal overflow box 20
return pump? what is it? mag drive or something? probablt 20-25 bucks
live rock, id if you want it out quick, 2 bucks a pound. its got some cyno and algae, so 2 is fair.
light fixture i cannot see? t5? pc? 40-50 bucks
is that an RO unit or RODI unit? how many gallons per day? 85 bucks or so is fair.
this is just my opinion. others may say its worthless or maybe worth more, but thats ballpark prices i think. rough estimate. or do all combined price, and take off 50-80 bucks and try it gone in one shot to a beginner
good luck with sale