You may find that the door will need to be removed as the hinges will probably not sit in the same place and you could potentially end up with a lot of ' binding' , I would gey that broken centre one first to see . The other problem is the weight of the glass will cause the door to move as soon...
No the thickness won't determine if its double or triple , as they do triple and double glazed in both 24mm and 28mm units BUT when you remove the beads , if you take the unit out you'll be able to see if there is 3 panes of glass or two ( I suspect 3 looking at the pictures but hard to be 100%...
As Wayners is alluding to the sealed unit had ' broken down ' the dessicant ( not quite the same as silica gel but is a good way to explain it ) within the spacer bar has become saturated and no longer removes any moisture getting into the unit, and thus you get the condensation, starts of as a...
Should add actually, you could remove the handle too , you might be able to get a flat edge down the side of the barrel, once it's unscrewed , and force the cam.round as you turn the key
I'm going to agree with Crank here , sounds very much like the actual barrel is faulty. It is possible to get new items that are faulty , happens a lot on cars would you believe ( don't ask how I know lol ). Looks like you've tried the ways I would , which is unscrew the retaining screw and...
Personally I wouldn't use plywood , firstly op had never mentioned whether light is needed or not....I suspect it would be advantageous. I also wouldn't use Georgian wire ...hate the look of the stuff. If there is a need for fire rated glass ( blocks of flats and the like ) , I'd use 7mm...