Need both "Checkout Now" &"Get Formal Quote" options

[Snostar]

Joomla 2.5 VM 2.0

I have been seaching these forums and found how to change the check out to a get quote system, but I need both of these options available to our customers.  Many of our customers require a formal quote to take to higher management prior to  a purchase order.

Is there ny way I can add an option to the bottom of the cart page called "Get formal Quote", I'm thinking that could be the exact same as the "Check Out Now" function except it would set all the prices and total to zero, so nothing would be charged to a payment method, and when our office recieves an order with the prices totalling zero, we would produce the corresponding formal quote for the customer.  I am just trying to figure out a simple way of making this happen.

[PRO]

You can setup a "standard payment method" and let them checkout with it.

BUT prices will not be set to 0.

ONLY this is, they have to still fill out there Billing address