Torch corals in my area will go anywhere between $30 and $100 depending on the size.
I had one in my 46g for a little less than a year. I ended up selling it back to the LFS
because it was getting so big it was "taking over" half of my tank. Torch corals can "reach out" with those tentacles and sting/kill other corals pretty quick. Let's just say they don't play nice.
For that reason, I'd be really hesitant in putting it in a 14g tank unless that's the only coral you want in there. They are really an aggressive coral.