I want to know where people are finding Ruger LC9s and Kahrs for $350 out the door. I want to move to their neighborhood. I haven't seen a used LC9 for sale yet and the cheapest Kahr I've seen locally is a used CW-9 for $390 + tax.
I had another idea for the OP. It isn't a 9mm but I think it might be worth a look. Check out surplus CZ-82s. They fire the 9x18 round. Basically it is a commie .380. However, you can get one in very good shape, plus an extra magazine, a mag pouch, and a ton of ammo for about $370 bucks.
Check CDNN for prices on the gun, mags, and mag pouch. Then check SG Ammo or Ammo To Go for the ammo. I worked up a price on all of it myself. It was $284.95 for the gun, magazine, and mag pouch with shipping and transfer fees. Then it was $83.95 for two boxes of Hornady Custom hollow points and 4 boxes of Silver Bear FMJ. That ammo combination gives you 200 rounds of range ammo and 50 rounds of hollow points. Use one box of 25 hps to test for function and the other 25 will be just enough to fill both mags and carry +1.
The only thing missing at that point is a cleaning kit and a holster. You can buy a BLACKHAWK! universal IWB holster for $14 and it will work fine until your money situation allows for a molded holster. A basic cleaning kit will cost you less than $15. You can hold off on the holster untill you actually get your CC permit.