If the coin want to be listed in mintpal, it need 20+ BTC, it is too much.
Maybe the devs need try to add it to some other new exchange platform.
I agree mintpal is probably out of reach right now (they are a bunch of extortionist crooks anyway IMHO). I would suggest comkort.com They are a great exchange with the best interface of ANY of the exchanges I've used, great customer support and I think it's reasonable to get GNS added there. Plus it's already on the list, just need to start voting (once per hour if you aren't registered, 3 times and hour if you are).
https://comkort.com/vote