c-cex.com can be a good exchange too and if XOC has good volume there it could be much easier to reach trex or polo later.

This is a good solution

Where do you see good volume?
2 btc daily it's good volume for you?
Good luck then.

Bittrex ask 3 btc to list coin.

3 btc daily? I didn´t know, I thought they were asking for a bigger volume. If they ask 3 btc daily it will be a matter of a few days.

3 bt to get listed. if dev pay 3btc to bittrex they list.
if not,yes,they require big daily volume, maybe 10+ a day.
just my 2 cents.

3btc
bittrex probably will gladly accept XOC