You could probably order a Kahr T9 just within your price range (plus tax of course). All steel. Single column eight round magazine. Very thin. Four inch barrel. DAO. Around 28 ounces w/ empty mag.
You could get the same thing, thinner through the grip, lighter, and cheaper by ordering a TP9. Essentially the same pistol with a polymer frame.
Use it up. Wear it out. Make it do, or do without.