How we are percieved by the public
If a person wished to leverage hobby skills in the employment market, I'd keep the message as simple as possible: a model builders skills are in the area of model building. There are individuals employed full time making models. For example, for architects and museums.
Others may not require a model builder per se, but might recognize how a model builder might be well suited to the task at hand. Those individuals won't require much explaination regarding how a model builder would suite the task.