Material Design cost fork for Shop Script 6.7?

Question

Web development

In the official themes of webasyst there is a single MD theme for 10 sput. But it seemed to us that it was overloaded. I want something cleaner, or something, and simple, so that everything is as Google recommends in MDL.
How much to quote for a freelancing project?
And what are the SEO implications of changing the theme?
Due to the abstract nature of the question, I will mark all answers as solutions.
Thank you.

Answer 1

Указывайте по договоренности.
Последствия при смене дизайна – или положительные или отрицательные. Сделают неудобный интерфейс, повысится уровень отказов и пр.