I have a tank with Cardinals, Rummynose, Congo Tetras and RCS. The shrimp are fine although I have a lot of plants as well. The only time the fish pay attention to them is if they are swimming in the open water. Other than that, when they are on plants not really moving around the fish don't even notice them.
With the fish you are getting, if you want RCS, get them. Once they are established they breed like cockroaches anyway which will probably more than offset any predation.
Great, thanks for the input! Looks like RCS are out and Amano are in (possibly bamboos, need to do some more research on them) for the 100 gal. How many you think would be sufficient? I see they're about 2" full grown so I was thinking about 10 - 15 should do.
So here's my current revised list (not the 100% "end goal"):
10x Dwarf Corys (Thanks for the input Betta Maniac!)
20x Neon Tetras
15x Rummynose Tetras
15x Ember Tetras
10 - 15 Amano Shrimp
I'm still debating on the 15x Harlequin Rasbora's, thinking I may swap them out for 10x Swordtails (2 males 8 females).