Keep grinding (or instead, just play the game naturally, less chance of burnout and eventual disappointment when you get the Annie) and keep the Krait, it's one if not the best ships in E: D imo.
I found that once the initial novelty of commanding a big ship wore off (pretty quickly actually), I went back to smaller ships which are more fun and less costly in case something goes wrong.
The conda is a good ship but since I got my Corvette it's sort of redundant for me, as I use my DBX/Phantom for exploration, and my Python for trade (the Conda can't land at outposts). Tried to like it but bought and sold it perhaps three times? Also find it one of the ugliest ships in the game but that's personal taste.
Also make sure you have enough spare cash to A rate it and a few rebuys in credits left.
Edit - to give a ballpark figure, I wouldn't even look at buying a conda until you have around 250-300m in credits, especially if you plan to fly in Open.