Facebook does differentiate between “natural persons” and “page personas”. You can switch between both by clicking on the right top drop down (beside your name) and selecting the persona (aka I would click “use as Terry 42” when I want to imperonate my DJ persona). As a persona / page owner you cannot like other “natural persons” on facebook, only sites or comments. (You can try by liking me see link in my signature)
The 30 likes will enable you to be more visible. More people get updates and more people get “you might like XXX” and you get a weekly newsletter with your statistics.
Yes get a personal account because as a “natural person” you can do other things too.
Yes you can use custom images so called “title images” and you can post in your history specific things that define your style, persona or whatever.
I am no facebook pro, but I hope that answered some questions.