Sounds like a decent plan to me. What CP are you going to be using, Multicraft? What's your budget? Have any business plan set up yet? There's probably a decent number of Minecraft players around here; not a lot, but decent. I've heard that the Minecraft hosting niche (and the whole hosting niche in general) is saturated to a serious extent, so you'll probably have to step your game up (although accepting cryptocurrency is a small step in itself).

Good luck!