CRM Standard object role customization

Summary:

we would like to create a custom role for our standard CRM Users who should have read and write access to the following objects

Account
Contact
Partners
Partners Contact
Campaign
Opportunities
Revenue
Sales Lead
Activities
Service Request
Resource
Account Plan

Currently we are utilizing the sales representative role. however we would like to create duty role per object so that we have full control on what privilege's should we grant to the user.

Example we will create privileges for account

we want to create Account Read Only and Account Read and Edit

by this mean we can make our role and data security description more readable on our side.