I know I'm going to regret this, but why are you insisting that the OP has to get a bike that will take a rack, Slim? Especially since the OP has stated a rack might be nice, but he'd just as easily use a backpack? And you even posted a link to a rack that doesn't require the normal attachment points?

OP, there is another site that I think may be of help to you. I haven't checked it out personally, but the subject matter is of interest to me. I think I'd rather try bikepacking before road touring, but that is just me.