Newbie needs clarification on acronym B.A.R.?
California Bureau of Automotive Repair. They are charged with determining what emissions equipment is required on vehicles in Cali, NOT the DMV. Lots of them are gearheads, surprisingly helpful with things like engine swaps, etc. Call them, ask to speak to a smog referee. Explain the situation and make sure DMV is even telling you the real skinny. Lots of bad info out there, and DMV employees won't even bother to tell you about B.A.R. referees.
First determine that the vehicle isn't already a C model, as Gizmow and Peruano have suggested. You may be in luck. If not, call B.A.R.
The TW has a pretty primitive set of emissions equipment, with Cali models differing from 49-state models primarily in vapor containment. Ask them if they'll allow retrofitting if they say no to the Az. vehicle. I can loan you the stuff you need for inspection.
I've actually found them pretty decent folks to deal with. Your mileage may vary.