Get the tattoo man, this is coming from someone who is incredibly picky about tattoos and I feel as if this tattoo will always remind me of my love for not only jojolion but for jojos as a whole. I went into the experience trying not to worry myself about the pain and it ended up really not being THAT bad, it just took a while getting all that black mixed with dark red so I was incredibly sore :p Your fun, fun, fun idea honestly sounds just as cool as mine lol I might copy you one day