Book Editor for Multilingual Text

I am seeking an experienced editor for my book on forest governance as discussed in Arthashastra. The book is in English, complemented by Hindi and Sanskrit sutras. The primary requirement is substantive editing to enhance the structure and flow of the text, with a focus on the English sections. Alongside this, proofreading should ensure grammar and spelling accuracy in the English portion.

For the English text, I am open to suggestions on style guidelines or referencing standards, as I have not finalized any specific preferences. Your expertise in handling multilingual texts and ensuring seamless integration of English, Hindi, and Sanskrit content will be highly appreciated.