[VAC] Vista View windows: breaking inner glass???

[Imp67cc64@xxxxxxx]

I have a 77 Excella with three fogged VV windows.  I am having little luck 
finding the recommended gasket material to do the procedure outlined by 
Can-am RV.  This procedure recommends loosening the outer glass, cleaning it 
and then resetting it.  Since I seem to be unable to find the gasket 
material, I was wondering if anyone has ever knocked out the inner glass 
without breaking the seal on the outer glass.  It seems to me that if 
carefully done, the inner glass could be removed and the edges ( which might 
be a little rough) could be covered with a window sealant, insulation foam 
bead or other filler and the outer glass could be left unmolested and still 
sealed to the window frame.
I welcome any thoughts, experiences, etc.

John  -- unclear in Atlanta