Do you mean for free or as a qoute?
Either case - yes you can.
Do not even need to use eCommerce if you have products people just enquire about you can build that using web apps if you want.
We inventory various printed items for our client so the individual offices order them as they need them.
The items are paid for up front by Corporate, we fill the individual orders and then bill Corp for the shipping each month.
So we do not list any pricing, all we need is the ship to address which we make available via a drop down that can be edited, and have them pick ground vs. next day.