Time from Morelia Airport to Bus Terminal?

We have a taxi/tour guide friend in Morelia that can pick you up at the airport and arrange a inexpensive hotel and take you to the bus station the next morning(we like the 7 am bus to "Z". We have flown into Morelia 2 times, the last time in January to go see the butterflies in the mountain- very well worth the extra day in Morelia. Our guide had found us a old and cheap hotel but after 2 nights had to move to another because they were closing- the 2nd was modern next to the viaduct that is famous in Morelia. Email me if you are interested and I can send you his email address.