For the exchange - I would say we could do a campaign for Poloniex, it is by far the best alt exchange out there.
Poloniex is very hard to get onto. It may be better to start with a less ambitious option. Would be great to get onto Polo though.
Poloniex actually likes innovative coins. They just don't like clones too much. But they've listed plenty of them as well.
rai definitely has interesting features, but it's true that it's best to list with another exchange and iron out the details, before listing with polo.