It is quite different, will that be enough for me to be safe.
Yes. Just because there is another model of something on CGTrader, it doesn't mean that you can't put up another design of that particular model. Yours will be different, either more or less detailed, different graphics or bump maps (if you included them) and so forth. The buyers will decide which model they like. Some customers may be looking for something simple and others for something very detailed with a high polycount.
It's a higher quality model, thank you for the help.
