I would go higher on several of the prices.
9" green monti cap- $100 easy, maybe more.
A volleyball sized shrub of purple whip gorgonia, I would add a lot to that, you won't find one to validate the price on line, it is that rare to get a large colony. I have been growing my frag out for 4 years and I have 9 stalks now and it is under a foot tall. The 6" frag was $40.
20"tall 10" circumference 15 branched, tan candelabra gorgonian, I would double that, but honestly you won't find one that size for sale.
30+ head green/purple frogspawn, I would go $10 a head.
6 various Ricordea $80, stores here sell them for $25 a ric.
25 orange zoas $50, that is a bit high to me. Depends on the zoa.
Depends on the size,a pink bubble, I'd pay a lot for. I've never seen one for sale.
Orange scolymia, $50? Serious? Did you say brown and the size of a quarter? If it is a scoly depending on size easily 4x as much.
To get large colonies you are going to have to special order, and special ship, I would include all charges you will incur.