Help With Formmodel Payment Flow

Hello,

I need to collect Shipping and Billing address, Credit Card Info and then allow user to confirm order.
The shipping and billing info is stored in the database.
The Credit Card info is not stored.

What is the best way to allow the user to fill out the data?

I am trying to show a page for shipping/billing
and then a page for Credit Card

but I do not know how to save all the info in one package to present to the user on the confirm order page.
hope this makes sense.

Thanks