It all depends how handy you are and the quantity you need.
A CAN tranceiver is a very simple device, it requires power (2 sides), has two pins for process conenction (CAN-High and CAN-Low) and two pins for µC connection (TX & RX)
If you need only one/some you can easily build this using prototyping boards and wires.
If you need more you better design a PCB and assemble the components.
Best is to start from the simple prototyping and evolve.
The Beagle CAN processing is rather easy and works almost immediatly.
Regards,
Gwen