Corporate identity for a business start-up

I need a Corporate identity for a business start-up
I have already post this job ; but haven't been very impress with proposals ; so this is what I need :

including :
1. LOGO DESIGN

2-3 Initial Logo Concepts
unlimited Logo Revisions
Professional Logo Artwork Files (.AI, .EPS, .PDF, .JPG, .PNG – Transparent) if possible
Full Color, Grayscale, Black and White Versions.
Copyright Ownership To The Final Logo

2. SOCIAL MEDIA DESIGN
Facebook Profile and Cover Image Design
Twitter Profile, Header, Background Design
LinkedIn Covers and Profile Images
Youtube, Pinterest etc.
3. STATIONERY DESIGN
Letterhead, Business Cards, Envelopes
few Initial Stationery Concepts
unlimited Stationery Revisions
Professional Print Ready Artwork Files

4. WEBSITE DESIGN (OPTIONAL) I will work with same persone for website after
5-7 Page Website Design and Development
WordPress (CMS) Theme Development or Simple HTML + CSS Web Design
Professional Website Design Artwork Files (Photoshop PSD Layered File). Source Files A Organized And And Easy To Use
i'm not expecting 1 price for the 4 part: but would prefer to have a proposal price for each section....and work gradually ..!
looking for the right person ; someone who really understand my business concept.
will be more than happy to answer all your questions