Hungarian speaker to make a call to Budapest - knowledge of the cimbalom a bonus!

I don't speak much Hungarian and am hoping to find a Hungarian speaker who can help me. I play the cimbalom and recently got a new set of strings delivered from Hungary. The measurements were not quite right and the maker has agreed to send a replacement set of strings. The problem is that he doesn't speak English and I don't speak Hungarian so I'm looking for someone who can help arrange the for the correct strings to be made. I haven't measured cimbalom strings before so some help communicating the exact measurement requirements from the maker to me might be required.

Some knowledge of the cimbalom would be a bonus but not a requirement. Someone who is practical, concise and friendly with a good knowledge of Hungarian and English would be a great starting point.

Thank you for looking!