How can clients view and order only their unique products?

[Magictrix]

Good day, your help is appreciated. I am certain there is a way to achieve the following client privacy and custom ordering to that client?

Please I need  a solid solution to have clients sign in and only see their products to order?

For instance, I sell a certain size custom formulated ink to a particular client at their unique price. 

We want the client to only see their custom products.

Client signs in user name and password

Sees their specific catalog

Can place orders on their custom products

thank you 

Glen

949-981-6822