Thanks for all the help. I went ahead and broke the glass because I already bought the glass from a local glass shop. It appears that the prior install was done with rubber tape and silicone glue. I'm having to hammer and chisel the old glass chunks out by hand, and even with a air hammer and narrow chisel bit. Slow going. Anyone have a paint code for the silver on the window frame? I'll do one side first and then take some before and after pics to post, along with anything I learned. Thanks again bolters.