It's a tricky thing, because artists definitely deserve to be paid for their work, but on the other hand there are probably a ton of games on here that wouldn't exist if everyone involved wanted to be paid what they're worth for the time spent on it. I've been in a couple game jams where we had fun and it was a good learning experience but no one ever made any money, and we were ok with that.
Maybe you could share the idea and see if any artists are interested in joining you, or like the story enough to want to make art for fun (and obviously recognition and a share of the money the game makes, if it's that sort of game). Or, idk what kind of game you're planning, but you might be able to go the Wayhaven Chronicles route of having it just be text.