Originally Posted by t0mmie
Shame airstream are out of supply!!!
There is a 'current' part that is very similar, but but identical, used on current stack windows, and lists at ~$50, but the curve at the ends are different (a continuous semi circle rather than two radii with a short straight) so look a little odd.
I tried buying those and getting them modified, I tried having some bent from angle on a Hosfield bender, but in the end had to have some made from scratch. To do so the fab shop, cut the front face by water-jet, the return was bent from flat stock, the face and return were welded, then because I was using on a VistaView, I had to get the return filleted to allow the front the form a curve. $700 each (and I have 6 windows)!