I'm coming to the meeting on Sunday. I have some polarizing lenses and an iPad that can be kind of used to check if glass is tempered. We could test it out at least.
I also have 35mm, 45mm, and 60mm diamond hole saws for drilling holes 3/4", 1", and 1-1/2" ABS bulkheads from BRS respectively. I have a template from glass-holes for drilling a 45mm hole, but not the others.
If someone can bring one of those clamp-on templates that they sell at BRS or some other kind of holding device I can bring my battery powered drill and a squirt bottle for dropping water on it and we can do a drill-fest. Don't actually need a template if you just start grinding sideways to get a groove and then rotate it upright. I have plumbers putty too to make a dam to hold water.
I don't warranty the results, but the sale is still going on if your $40 or $55 aquarium cracks.
It sounds like the meeting has kind of a full agenda with two speakers, but I'm fine with bringing the stuff if the club leadership is fine with a spot for hole drilling. There will be lots of people there who have done it before to help drive the drill.