Calligraphy Quotes

Hello,
I am looking for some calligraphy price quotes.
I am hoping to do Inscribes calligraphy (mechanical arm calligraphy) for my invitations, but will consider hand calligraphy if it is at a reasonable price.
I have already received a price quote from another vendor of $1.00 per outer envelope with black ink for Inscribes calligraphy; however, the vendor is very hard to get in touch with when it comes down to it.
I would be willing to pay a little bit more money if the service is reliable; however, I would like to keep the prices below $1.50/ $1.75 per outer envelope with black ink.
Can anyone help me?

Thanks!