Is possible to create a DK instant 80 on this server?

As per topic, If yes, how?...or should I have at least a pg at 55?

Thanks in advance!

you need lvl 55 character

If I recall right you could get a DK without having a level 55 if you donated, you can buy level 80 characters on the "trade" tab, You can also level a character up to 80 with coins but for DK's I'm unsure since you need to do the start quest chain to get talent points.