Hi Jaycee,
Toplace can do the hair add but you're right--it has to go back to the factory. Debbie's Mom used to do it but only on lighter jobs. The bigger jobs, say adding over 10%, still go back to the factory. But she no longer does it. It's tedious work and finding someone to do it in this country is like finding the proverbial 'needle in a hair stack.' I'm sorry but the only option is to send it back to the factory.
Regards,
John