Mopar torque converter

Okay, I've got about 4k miles on a torque converter I put in the car about a year and a half ago that started making noise at stops almost like a broke fin, then Thursday stopped working altogether. I paid like $140 so assuming it was rebuilt. Now thinking I need a brand new one, it sits between a 74 360 with an comp cam xe 268H nothing radical, thinking stock converter with 2000 stall would be fine...question is where do I find it and at good price