Well, well, well.. What a ride. I just spent the better part of this evening reading the thread. I am happy that you are feeling better, and that your lovely mate, Tink, has stuck by your side through the whole ordeal. The love between you two is very dynamic... the stuff that most folks strive for, but few ever find. Many, many blessings to the two of you.
Now, I agree with skirossi... most 55's are tempered. I had never drilled glass until last week, but it really isn't hard at all. Practice on a piece of scrap. Let the bit do the work with steady light pressure on the drill, especially as you are about to break through. Duct tape the bottom of the glass under the bit so the blank doesn't fall out. I used the stream of a garden hose to cool the bit, and wash away the glass dust. And check out
www.glass-holes.com for bits, and an instructional video.
As far as leaking bulkheads, I use a very small bead of silicone around the perimeter of the hole inside the tank, striking it smooth after installing the bulkhead handtight plus a little more.. maybe 1/2, 2/3 of a turn more. I have had great luck with this method.
Again, thanks for sharing the build. But more than that, thanks for sharing life. It's the human element that is sorely missing in today's world... this thread indicates that there are a lot of great people left with big hearts... and we have all seen yours! :lolspin: Hang in there!