I've already spoken to trex, we've already submitted a request, but after talking to Richie over there, it seems there's a nice stack of people waiting to be listed.
I paid for cryptopia listing already, .97 BTC is what that cost me.
We'll see what happens with Trex, but for now I'm happy with cryptopia, we'll go for Trex after a few weeks go by.

I will definitely be willing to help out with the listing on Trex, and I have direct communication with Richie and Bill there. Their basic listing is 3 BTC, so a bit higher than cryptopia... but we'll figure it out.
Wow, that's some serious commitment.
Do you know the dev of this project or may I ask what made you want to invest in this project?
Seeing quite a few Legendary members excited I will take a closer look at Signatum.