Due with 5VDC GPIO

Is there any way to do this? The Due would be the perfect candidate for a project I have, but I need 5VDC GPIOs. The main reason for the Due, is to use the dual CANbus.
Would there be a shield capable of this, or would it be possible to build one?

Otherwise, are there any boards with similar capabilities that are 5V tolerant?

Thank you,
Ed

You simply put buffers in the I/O Pi s you want to use at 5V.

A little late to the party, but Max32 has 2 CAN, and 5v tolerant I/O.

http://www.digilentinc.com/Products/Detail.cfm?Prod=CHIPKIT-MAX32