SO the other system I might do, is an undefined statistics, not including HP, mana, and Stamina...

You have a visual show of your conditions I.E. HP, MP, SP.

But Str, Dex, ect. are undefined but the characters all have an innatee understanding/ feel of how close they are to the cap of their current cap on the stats, sort of, efficiency? As in how well they wield their strength they have, would proficiency be better? I have a map of the city gilanaire will start the story at, or possibly be at for a while, depending on the speed of the story to come, if you want to share possible ideas with me comment below. Besides that, I was thinking of having a typical adventure style story?

Stolen novel; please report.

I am really thinking to use the dnd based stat system I had in mind in the first place. What if I build the story like a dnd campaign? Would that work... Maybe. I might write a chapter and switch the system out each time, and do the two different systems each time, the quality might be fairly poor but it's not my priority. These first couple of chapters will more than likely be theory crafting