If you do a reasonable starter you can have pretty much any sub 1.060 american style in the keg drinking in one week. I don't mean an oversize (mrmalty.com) starter, just 1 L with a stirplate or shaking. You can also get a bavarian wheat in the keg in a week as well, with a decent starter. Of course this means making the starter a couple days in advance, and your beer will be cloudy. You can get the cloudiness fixed with gelatin in the keg and crash cooling, but that's going to add 2 days or so. Also, if you want to dry hop you'll have to add that time. So basically, if you don't mind drinking cloudy beer, which I don't, you could make a blonde, pale, esb, red, amber, porter, wheat, rye, etc. in 9 days from your trip to lhbs if you have good temp control and everything goes right. You could have a crystal clear beer in under two weeks.