After a good two or so months of searching, I found the first horse that could actually work out.. as she was within the distance my dad was willing to drive (about three hours away) and she had a nice build and had lots of potential. With that being said, I replied to the ad. Today she got back to me and said the horse might be sold already but it's pending, although she's going to let me know by the end of this week.
So, please keep your fingers crossed that the mare is still available for me to go see at the end of the week! (or that I happen to find another horse that fits my criteria if she does sell)