I was reminded this morning of an excellent write up by Mike Palmer at Station Road Steam providing advice on buying models:
Myths, Dreams & Realities - avoiding the rogues if you are considering buying a model or having someone work on your models for you its worth a read:
www.stationroadsteam.com/myths%2c-dreams--realities/While it is about buying in the UK I am sure there are similar ways to check overseas companies.
Jo