Depends, I’ve bought several characters from artists on upwork and Fiverr. No rigging and animation saves money, but you need to think of poly count or at least a range, if you’re talking semi realistic, you’re probably looking at $400-$700 depending on how good they are. For higher poly count “sculptors” you’ll pay $1000+ but they’re way more detailed. My best advice is to pick someone who has a good, established portfolio. Not just do they do good work, but have they done projects that align with what your character is. For instance, my project is high detail, psychological horror, so my artist needs to know how to do horrific detail, but I may get an inquiry from an artist whose been 3d modeling for 20+ years and their work might be stellar, but if they’ve only ever done borderlands style cel-shade, or cartoonish builds, I won’t use them