Propecia Discount Pharmacy (PHP, SEO)

I need comprehensive SEO program for online Pharmacy website which specializes in sale of Propecia and hair loss medicines. Also, need a fairly basic PHP cart and orderpage linked to mysql database, details are below.

For SEO please give me a no nonsense proposal of what is required to achieve top 20 rankings for following keywords:

Propecia, order Propecia, buy Propecia, Propecia prescription, Propecia no prescription, online Propecia, generic Propecia, finasteride, wholesale Propecia, Proscar

Please outline exact plan including type/scope/cost of onsite optimization as well as offsite link building, article writing/posting, press releases, blogs and any other strategy you would recommend.

Please demonstrate how you will report completed work and give me reasonable time estimates to reach specific goals. Also, if you have any examples of past SEO success in my or other industry.

Also, I would like a quote on creating a PHP based shopping cart with database for site with the following functions included:

- ability of customer to create login account using email and password in order to access shipping information after order is placed, as well as pre-fill order form on return visit.

- admin ability to add shipping information (date and tracking number after order is shipped)

- ability of customer to input specific coupon/discount codes which the form will validate and calculate.

- ability of form to automatically give a flat 5% discount on specific products when returning customer logs in to place an order for these products

- include 2 shipping options

- upon customer submission of form, a confirmation page shows which asks customer to confirm order and shipping/billing details before final submission

- results of form are emailed to me and/or displayable in a secure html page or viewable in admin session of database where admin details (shipping info) can be entered. (I have SSL server with my hosting account)

- Confirmation of order is emailed to customer with an order number and upon final submission of form, the customer is redirected to thank you page.

Lastly, if you have suggestions for structure and presentation of site that would enhance sales and create customer confidence.

I have 3 or 4 other websites and more comprehensive database/customer organization and email marketing projects that I plan to do next. If your work and prices are top notch, I will definitely have more projects on tap.