Any chance to mine it with GPU at least at the beginning?
Yes you can always mine with a GPU, keep in mind this is an SHA-256 coin not Scrypt, so in your miner like cgminer .bat file you'll not add --scrypt to the .bat file. If you're using an existing .bat file for a template, be sure to delete the --scrypt to make it run in sha256. Other miners like bfg or something will need you to add -ALGO=sha256d or --a sha256d to the file. I would strognly reccommend putting the GPUs in a pool rather than trying to solo though, because the asics will be going solo at first and putting the difficulty too high for a GPU to be effective solo mining
