W.salam.
i have read your description and interested to work with you.
i have a typing speed of 20wpm (urdu) and 30 wpm.
I can work on your provideed rate. As my urdu typing speed is slow, so we can work on minutes of audio file.
2nd option.
I can do using outsource if you manage to provide offline work, i know someone with very fast urdu typing skills, but he is working in a local shop, he is not available on freelance market.