add on cart for richwaytech

(add on cart for richwaytech corp) I want a add on cart that has option to add paypal, [login to view URL], google cart or all 3 already there so all one has to do is activate the merchant gateway. so client can use 1 or 2 or all 3. then I need tax option again that can just be activated according to county. just florida fine for now shipping: should have flat rate shipping but also have way to activate UPS plugin. qty discount option also for wholesale orders this is a add to cart system that will have order status in front and admin Backend admin: email collection to .txt file to copy and paste into any mail system also should have orders by date for merchant with delete function. change password in back end and forgot password in front end MUST BE EASY TO INSTALL ON NEW DOMAINS THROUGH FTP MUST COME WITH DETAILED INSTRUCTION ON HOW TO INSTALL ON NEW DOMAINS. THIS IS THE WHOLE PURPOSE OF THIS PROJECT. You can see an example of what i am talking about on the-point(dot)com This is an add to cart syatem that will attach to html sites that want shopPing cart added at an affordable price for clients that do not require the ability to make the changes themslelves.