I finally had some time to generate a perspective comparison that I can post. Below is an overlay of the hero Obi TPM saber, the Bulgin DX1093 LEDs (red outline) and LED bezels that I scaled to match the hero saber (blue outline). As you can see the Bulgin LEDs are really close but just a little too short. I still believe they are the closest option readily available today.
Measurement source is LEDs I have on hand:

Measurement source is LEDs I have on hand:
