Perhaps can consider exchanging some of the idle coins for ether. But ether wallet looks like cumbersome to set up.
nah, i don't think that is such a good idea. ether has droped so badly these past days and it is highly possible that it continues this way.
Investing in any of the alts is never a good idea. They are so manipulated due to their lower market cap. that it's just bare luck to profit on them.
I would rather store my coins safely, and let time do it's thing. 1 or 2 halvings later, you will have profit of multiple folds.