A friend's son is selling a 13” 2009 Trek 4300 to make way for a newer bike. He is looking to get $300 for it. If interested please contact John directly at 908-203-9191 rather than replying to the post.
The standover hight to the seatpost is 61cm.
Another measurement that might be useful is the center of the seat tube to headset center is 50cm.
My son was just about that size when he got the bike.
We're in Bridgewater, stop over if you want to check it out.