I have pretty much decided on a 30x48 shop building, and with my land configuration the door must be on the gable end. My question is would you go with 1-16x8 garage door or 2-9x8's. what would be the advantages of your choice

not that it will matter five years from now but 2-9x8's will be about 1400 and a 16x8 is about a 1000 or so

Also what do you think of 10' vs. 12' ceilings??