You're asking more than 5x return for a very volatile, unproven asset. And that's a huge amount of money. Why not stay with something with more solid fundamentals, like Bitcoin?
And remember... In a few years we may have Lightning Network, MimbleWimble and more features that can make Bitcoin a very good investment.
Bitcoin doesn't make you more Bitcoin.
Well, it depends of the kind of risk you're willing to take. 60k arks, ATM, it's a lot of Bitcoin. If that's not enough for you, you can do a lot of risky things... Gambling can also make you more Bitcoin, whether it is worth the risk or not, it's up to you to decide.