Speak now or forever hold your peace! Here's what I have for the QRE1113 replacement. Check it over and see if there are any wiring or dimensional issues that you can see.
I measured my sensor boards, they're all 17mm long, so that's what this one is. I added the hole that some have as it doesn't seem to affect the usage where they don't have a hole. Finally, I added the provisions for a 0603 resistor and it's jumpered in the copper. If you want the resistor, cut the jumper and add the resistor. The resistor is only for Locosound, they supply 5V to the sensor LED without current limiting, PS/2 supplies the proper current limited drive voltage for the sensor LED.