I think you should work on it. You can bring more business with it. Try making it as much universal you can. If i was you i would work long time to make it happen and since I am getting more customers with some marketing I will profit more. You can also make it open source with patreon or something like that to fasten it up. Maybe only patreon for feature request and patreon gets the tool for discount or free depending on pledge.
Having different body shapes style and such will also be great.