Need programmer to create special product lists module

HI

We are looking to create an easier way for our clients to view and order pre approved products. We supply uniforms and products to clients. Currently we supply an XLS file and would like clients to enter their orders via our opencart website to become an order and flow through the system like any other orders.

Would like it to add a menu item on the top menu bar eg "Contract Products".
And the client would then get a list of products that are set via a drop down selection of which uniform(or Group of products) they are wanting. They can have several uniforms per client eg Warehouse and Admin etc.
Clients then add to cart what they need from the list displayed.

We do have this data in 3 tables already that our Inventory system has.
Header : Client details for a uniform
Lines : List of products eg "Top Green", "Pants Black"
Detail : Actual products in our Web system "Top Green Size M", "Top Green Size L", etc

Note our website does not use Product Options for Colour and Sizes, Each product is as a seperate product as this is how our Inventory system works.

Please PM with any questions and How much it would cost.

Regards

Hi Guys

Had a few inquiries to how current XLS file layout is to what we want as an online list to order from. See attached image.

regards