not sure, just checked it out once, not my kind or writing . . . my writing site commercialized and changed for the worse so your list looks pretty good. Good luck.
Post it on here.
Fictionpress.com works or you could make your own blogg with the story and tell people to be short about their comments.. Good luck though.. I would love to read it
I'm not 100% sure..maybe..they have changed a lot lately and I haven't used them in a while
You could also, just publish it on amazon