As often happens on the internet, you got advice you don’t like. Some of the people giving that advice have several hundred hours experience getting tattooed.
I re-read your post. You’re right about so many items being a back piece. Depending on how detailed it is, this would probably run 35+ hours. A good artist is going to be $100 or more an hour. depending on how well you sit it could run 8 or more sessions. Most people find the back painful. It’s hard to care for just because it’s hard to reach some spots. That’s a huge commitment for a first tattoo.
Here’s some more advice you won’t like. Get a smaller tattoo on an easy place like your bicep first so you have some idea what you are getting in to.
I understand what this site is for. I like art and the differences and designs people come up with. I've seen plenty of good and bad. I'm just looking for some basic ideas on paper. Multiple ideas can have different things I wouldn't have thought of. Of course each tattooist will do their own art, but if I can get more sketches here, than driving around forever, why not
I think you probably need to make an appointment with a tattooist and get a sketch done. If you haven’t found anything you like so far you obviously have something in mind but you won’t know it till you see it on paper. I would try not to overthink it too, it is important to get what you want but there are limitations. I’m sure a good artist will be able to create something you are happy with. Good luck!