Development of corporate identity of the company

It is necessary to develop a corporate identity for a law firm.
The logo is already in place. So based on the logo and develop the design of elements of corporate identity - the design of a business card, corporate form, envelope, diary, notebook, pen. So, just that, so make the cost of development out of this list. If we need anything else during the process, we will discuss it separately.

In the responses write the cost of development and terms. I will consider a candidate with experience and reputation.