Build Magento or WooCommerce System

PLEASE ONLY BID....AFTER FULLY UNDERSTANDING WHAT'S REQUIRED!! ASK ANY QUESTIONS BEFORE BIDDING!! We are building an online Window Covering Store/System. Where our clients are able to shop for Blinds, Shades, Shutters, or Draperies. We are looking to build VERY SIMILAR system compare to [login to view URL] and/or [login to view URL] and/or [login to view URL] and/or www.zebrablinds.com. We are looking to build our site having combination of functionalities from these websites provided. Admin will be able to upload pricing grid bound to each product category (Example of Product Categories: For Blinds we can have Wood Blinds, Faux Wood Blinds etc. For Shades we can have Cellular Shades, Roller Shades, Duo Shades, etc. Under Shutters we will have different product list and so on...). For a given measurement (width and height) of window covering this grid will be able to tell the retail price of the window covering. To extend this functionality we would like to show end user the retail price and also show them the actual price (discounted price) that customer will pay for the window covering. So in the backend we would require functionality to upload a “COST FACTOR SHEET” which will keep track of what it will COST US in relation to the retail price for a given window covering product. Ex: retail price for a blind is $200, but our cost factor is: 0.4, this means it will cost us: $80. But now we will need to add our margin of 35% (Admin will need to set margins according to either individual product or entire category of the product) and sell the blind to customers. So final price to customer would be: $80 + 35% margin = $108. So still customer saves $200 - $108 = $92 saving for customer. User must be able to select both width and height of window covering as part of a select box containing width and height values as per the restrictions set for the particular material used for window covering. So depending on the options selected for the product the price should change accordingly. This functionality is probably the most important aspect of the store. We want to extend functionality so the system is user friendly and would like to have Summary box on the left/right hand side that lists exactly what product, width, height, all options (color, lifting/tilting mechanisms) that user has selected for current product etc. The most important part would be CONSTRAINT LOGIC. So let’s say a Fabric Shade is 100 x 100 (Width x Height in inches). Now this shade can only be manufactured within given constraints. For example: Cellular or Honeycomb Shade in constrained in following way: Type of Fabric Selected, Cell Size (Single vs. Double), type of options selected for the fabric/product, and for the given width and height. So a customer may only be able to select Cordless mechanism, but may not be able to select Top Down/Bottom Up. If they want both option then, for example, the size of the entire Shade could only be manufactured in 85 x 85 not 100 x100, due to constraints. All this is driven by size of shade/blind/shutter, type of material used (type of fabric/wood type/shutter material), and type of options selected. Another thing is that some of the window coverings may not come with certain options, EX: Roller Shade for example doesn't come with Top Down bottom up option etc. So each type of product has its own properties, characteristics, and constrains. I am sure I haven't captured ALL the requirements for now, but looking above mentioned sites you should be able to understand what the entire system entails. Provide a brief high level proposal on how would you go about the execution of the final solution (the online Window Covering shopping system). If you have any questions please ask. I am happy to share as much info as possible to get the initial discussion going, but I need to be convinced that you UNDERSTAND the technical aspects and will be able to deliver the system on timely manner.