Mostly good advice here, agree with almost all of it.
My advice, which is hopefully an aggregate of the above, is to find a bike that seems close, then see if the shop will work with you to get it dialled in... it shouldn't take more than a trying a couple of stems to position the bars where you want them.
I also agree with the advice that Rivendell makes very good 'comfort' oriented road bikes, but you certainly pay handsomely for the privilege of owning one.