The following is a post I put on DC. It applies here as well, so I'll just paste it. As for the 22 vs 9, a 9 should be fine. I started my girl on a .22 because I didnt own anything, so I could rent whatever I want. In hindsight, the recoil isnt much different. Honestly, when someone shoots for the first time, they're expecting the recoil of the .577 T-rex. They wont know whether it's 9 or a 22 they're shooting the first time they pull the bang switch. My girl is 5'3" and she shoots my xd9 just fine. The SC is just her size. It's the P3AT that still keeps her on her toes(snappy little bugger).
As for rentals, you should call around. I wonder if the ranges would make an exception for someone who already has a firearm at their disposal and a CWP. If you wanted to end it all, you could have left a stain on the carpet months ago.
To add to that, we started shooting at 7 yards. I had he just focus on pulling the trigger and firing the gun. We didnt go over aiming until after she felt comfortable with firing. Once we got throguh that, we discussed line of sight and aiming. When she switched to the 9mm, it wasnt an issue at all. Except my ammo cost more. We now put 500+ rounds downrange per trip.
As for rentals, you should call around. I wonder if the ranges would make an exception for someone who already has a firearm at their disposal and a CWP. If you wanted to end it all, you could have left a stain on the carpet months ago.