Hey all! Happy New Years!

Im working to get my beach cruiser to look somewhat like my Harley. I don't know anything about bicycles at all, so I'm hoping someone on this site can help me!

Is there a website or a manufacture of universal sissy bars for bicycles? And even the matching black style banana seat? I'm thinking it cloud bolt in on axle and just shoot strait up? If not - does anyone know where I could get a custom made?

Bicycle is Electra Rat Rod