Quoting tool as 1st stage of checkout.

-- HikaShop version -- : 3.2.2 Business
-- Joomla version -- : 3.8.3
-- PHP version -- : 5.6/7.1
-- Browser(s) name and version -- : chrome / firefox
-- Error-message(debug-mod must be tuned on) -- : N/A

We'd like to be able to just have the first stage of checkout be an onscreen quote.
A User would enter their products into the cart, enter their zip code (for delivery), and then calculate a total.
The next page could be the cart subtotal w/ a "Proceed" button, to complete the order.

This sort of happens now, but the user has to enter in ALL their information, just to see the shipping rates.
We were hoping that just the zip code field could be isolated to formulate the "quote".

(So, is there a way to create a custom address information module that would just be a zipcode, and calculate the products, tax, and shipping)?

Thanks.

Is there a way to duplicate & rename the Address workflow module, and then shut off the fields for that one?