There are a lot of different opinions on drip acclimating. I would recommend 2 hours due to their low bioload and their hardiness. One hour is fine though...because they are hardy.
That's a good looking tank. I agree with Joe on this one. Most LFSs don't offer to custom order fish...at least none of the good ones in my area. I often use a cruddy LFS to custom order things. They use SWF.com (and another store) for their orders and the price I pay is higher than sticker (obviously) but I still save money on shipping. Also, in the case that I can't come and pick up an order on time, it's better in their hands than on my porch. I also don't have to worry about the fish arriving dead.
Some would say that supporting a poorly kept LFS in this manner is unethical, but I get what I want and can still sleep at night haha
That tank looks pretty nice. Make sure to give us a picture of the new clowns in their new home.