Bravo or any of the archetype classes require a lot of CMs, so much that you will end up spending all the CM you earned just to get the requirements and after buying the actual master class you wont have any left for other CMs you might want.
I would recommend just building it like a normal ranger and once you grind more CMs after 60 to do a respec, that's what I did with my bard I leveled it up planning to be a minstrel and later respeced to a bravo after I had to CMs to afford the master class and the bard ability CMs.
Edited, Mar 19th 2010 2:40pm by SefanaPPO