Not sure of what your definition of shot is in your case, as it's hard to see any specific issue.
Is it a matter of the window frames are bent or damaged and don't slide, or is it that the glass and seals are bad?
You might have success in contacting a local glass place to see if they can address your issues.
Sea story; I had two sets of sliding doors, both with two 4 foot double pane glass panels that were old, had damaged seals, and condensation stains within. A local company in N VA recommended by my realtor came out, measured, and then came back and removed the old door panels, refreshed the glass and seals and made them new again. And their replacement panels were the low argon whatever.
I was initially thinking I'd need to replace the entire doors, but for $400 (in 2017) they saved me a couple thousand if I were to have the entire doors replaced.
They were able to cut and build the glass for a couple double-hung windows with similar issues (fogging internally).
I actually installed the glass for two myself that they cut, but I cracked s third when installing it, so I had they come out and do that one for less that $50.
One thing they were adamant about was if there were going to install, they had to come out and measure. They would not use my measurements for the one that I cracked when installing, even though there were the same size windows.t e
Shout-out to A-1 Glass in Manassas VA.