I think the Tigers should target a bat, preferably one that comes with a glove. Also, as great as it may be to snag someone with a good bit of upside even though they haven't played above A+ ball, I'm not sure that would work out well and seems kind of unfair to the player. So, I would disqualify anyone that hasn't at least played some AA.
I'm down with Ramos, he'd probably be just as good as anyone else the Tigers have to stick at 1B.
Also, Trent Giambrone, middle infielder with the cubs that has hit ok throughout minors.