I would invest a part of it in steempower (https://blocktrades.us)
I don't really know who would buy that much at once but i think you should sell them "peace by peace"
When did you get those btc?
Is it possible that you own some BCC and BTG also?(caused by some hardforks)
(Sorry for my bad english)
Investing in sttempower won't take me anywhere.
My vote with bring more value...maybe, just maybe I'll earn more SBD, than what? I'll be in a same position as now. Asking myself how to sell SBD when almost no one wants it...
SBD has no future at all. Maybe I'm wrong but that's my opinion
I was selling info products and consulting to those companies that work with bitcoins