Personally, I don't trace 3d models. But I won't get into that. If I was going the 3d route, I probably wouldn't commission a 3d artist. Here's why...
- I'm cheap, and also, I like to do everything myself.
- It feels too time-consuming.
- There are a lot of free programs, models, and apps already out there.
- It's also pretty easy to just take a photo of a room/prop yourself and trace over that.
- If I want to adjust the model, I wouldn't be able to do it myself.
So, if it's a one time thing, it might be okay to hire someone. But if you need a lot of models, I'd say watch a few YouTube videos and try to learn yourself. All the best!