Hi Geoff.
I want to ensure everything is rock solid before going "commercial", shouldn't be long as all seems good so far. We can have a discussion over a schooner and some food.
The H2 module is excuse the pun modular and can run the old displays or new displays or a combination. However as I have experienced the LED display can fail when removed as they can delaminate tearing the delicate wire bonds, it's not helped by the fact that Heuer epoxy glued the display to the PCB.
Here is a picture of mine which led to this thread and 4 months of my time and effort.
[img]
[IMG]http://i1243.photobucket.com/albums/gg558/rawsar/H2%20LCD-LED%20Chronosplit/IMG_3304_zpsjnfs2sxv.jpg[/img]/img]
If the picture doesn't load (I can't seem to preview it) just click on my original picture which takes you to Photobucket and advance to next pic.
I'll send you a PM re Bondi drinks.