Are you in Omaha or Lincoln? I might know someone in Omaha looking to sell a G29...... He is in LaVista. If he still has it, I'm sure he would meet you at the Bullet Hole to shoot it before you buy it.
I carried the G27 for years. It is a handful, but controllable, and I really like that gun. Shooting a couple hundred full power factory loads through it though is not the most pleasant.
Size wise, I carry the G30sf.... It is a little fatter than the G27, but still manageable.