When we purchased our van, it didn't have a flyscreen for the roof hatch. We bought a screen from the dump-shop as part of a $7.50 collection.
Actually we bought two screens because the first was too small. It was quickly exchanged for a larger version, which Nick then re-sized to fit the opening.
(A $2.50 packet of clips to hold it in place was purchased from Bunnings).
The winder handles for the hatch and two windows were broken. Although some replacement parts are available for old Millard vans, window handles are no longer made.
Nick found instructions for making replacements and I reckon ours are even more flash than those in the photo!
The lovely Nammo has been cheering our caravan renovation efforts from afar and it seems fitting that something of hers features in them! Some time back she gifted Erin a collection of beads and among those we found several of a flattish variety that worked well (with two nuts) for our handles.