Magento Product Qty Layout & Invoice for Bulk ordering

Avg Bid (USD)
Project Budget (USD)
$250 - $750

Project Description:
i have an existing magento site that needs an added feature to allow bulk wholesale qty ordering. i need users to be able to add an item to cart, then in the cart it would allow user to input bulk quantity with grouped color options.
black: 10 smalls, 20 medium, 20 large
red: 5 smalls, 10 med, 10 large
see example screens.

each line must group all its simple products on the order to provide simple ordering and invoicing design.

in magento's default layout and order design is for retail and does not allow for easy bulk ordering. i need the cart and invoice layout to accommodate this.
please submit your bid on this with a short description of your solution idea. let me know you understand the requirements and if you have done something similar before.

Skills required:
Magento, PHP
Additional Files: wholesale+cart.png
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