Do you really need the money right now? If not, I'd wait.

You can of course try selling at high, buying back in at a low. But that only works if you guess correctly. Up to you if you want to take that risk. If unsure, sell some, keep the rest. That way you'll make some profit, and mitigate some risk in case the price goes down.

Long term I expect Drk to go definitely higher than it is now. But up to you if you want to hold that long. Personally I'm keeping enough for one masternode (assuming I can figure out how to set it up) and will play with my remainder, which is a little more than you have. Yet I am hesitant to sell any, just because I have a knack for guessing horribly wrong on highs and lows.