I'm also thinking of registering a name, but I'm not quite ready yet. Not sure you would be able to register 3 disconnected names, each one is a life's work!
I've recently finished the Pharos online course "Introduction to One Name Studies" which has been invaluable, and has made me understand what is involved. I would strongly recommend anyone who is thinking of undertaking a one name study to do it. Also, there is a great deal of information on the GOONS website, even if you are not a member.
One of the things about registering a name is that you have to agree to respond to queries within a specified timescale, and there are some other conditions too.