I like the AA kits for training as far as trigger controll and cheap practice goes. Always end my shooting with a regular Glock slide and carry ammo.
I got my AA kits thru CMC
Just check in every day. They get them pretty regularly. I just got a LE17/22 kit a couple of weeks ago.
That being said, I personally would get something else rather than wait 9 months. Just get something that feels like a Glock if you can. As much as I like my Ruger MKII, it doesn't feel like a regular pistol to me.